diff --git a/tests/baselines/reference/importCallExpressionDeclarationEmit1.js b/tests/baselines/reference/importCallExpressionDeclarationEmit1.js
index 333bc8768be..793e52b12ad 100644
--- a/tests/baselines/reference/importCallExpressionDeclarationEmit1.js
+++ b/tests/baselines/reference/importCallExpressionDeclarationEmit1.js
@@ -16,7 +16,6 @@ function returnDynamicLoad(path: string) {
 }
 
 //// [importCallExpressionDeclarationEmit1.js]
-"use strict";
 Promise.resolve().then(() => require(getSpecifier()));
 var p0 = Promise.resolve().then(() => require(`${directory}\${moduleFile}`));
 var p1 = Promise.resolve().then(() => require(getSpecifier()));
diff --git a/tests/baselines/reference/importCallExpressionGrammarError.js b/tests/baselines/reference/importCallExpressionGrammarError.js
index 6f31587a23d..76694dfc60e 100644
--- a/tests/baselines/reference/importCallExpressionGrammarError.js
+++ b/tests/baselines/reference/importCallExpressionGrammarError.js
@@ -12,7 +12,6 @@ const p3 = import(,);
 const p4 = import("pathToModule", "secondModule");
 
 //// [importCallExpressionGrammarError.js]
-"use strict";
 var a = ["./0"];
 Promise.resolve().then(() => require(...["PathModule"]));
 var p1 = Promise.resolve().then(() => require(...a));
diff --git a/tests/baselines/reference/importCallExpressionInCJS1.js b/tests/baselines/reference/importCallExpressionInCJS1.js
index e9a5ffa3656..85d99dfa4c3 100644
--- a/tests/baselines/reference/importCallExpressionInCJS1.js
+++ b/tests/baselines/reference/importCallExpressionInCJS1.js
@@ -20,7 +20,6 @@ Object.defineProperty(exports, "__esModule", { value: true });
 function foo() { return "foo"; }
 exports.foo = foo;
 //// [1.js]
-"use strict";
 Promise.resolve().then(() => require("./0"));
 var p1 = Promise.resolve().then(() => require("./0"));
 p1.then(zero => {
diff --git a/tests/baselines/reference/importCallExpressionInCJS2.js b/tests/baselines/reference/importCallExpressionInCJS2.js
index 7430541b51e..a5b96c45ee0 100644
--- a/tests/baselines/reference/importCallExpressionInCJS2.js
+++ b/tests/baselines/reference/importCallExpressionInCJS2.js
@@ -29,7 +29,6 @@ Object.defineProperty(exports, "__esModule", { value: true });
 function backup() { return "backup"; }
 exports.backup = backup;
 //// [2.js]
-"use strict";
 async function compute(promise) {
     let j = await promise;
     if (!j) {
diff --git a/tests/baselines/reference/importCallExpressionInCJS3.js b/tests/baselines/reference/importCallExpressionInCJS3.js
index 264888091ab..499c8f9b496 100644
--- a/tests/baselines/reference/importCallExpressionInCJS3.js
+++ b/tests/baselines/reference/importCallExpressionInCJS3.js
@@ -24,7 +24,6 @@ class B {
 }
 exports.B = B;
 //// [2.js]
-"use strict";
 // We use Promise<any> for now as there is no way to specify shape of module object
 function foo(x) {
     x.then(value => {
diff --git a/tests/baselines/reference/importCallExpressionInCJS5.js b/tests/baselines/reference/importCallExpressionInCJS5.js
index 82845416b45..d1158fe48b8 100644
--- a/tests/baselines/reference/importCallExpressionInCJS5.js
+++ b/tests/baselines/reference/importCallExpressionInCJS5.js
@@ -40,7 +40,6 @@ Object.defineProperty(exports, "__esModule", { value: true });
 function backup() { return "backup"; }
 exports.backup = backup;
 //// [2.js]
-"use strict";
 class C {
     constructor() {
         this.myModule = Promise.resolve().then(() => require("./0"));
diff --git a/tests/baselines/reference/importCallExpressionInScriptContext1.js b/tests/baselines/reference/importCallExpressionInScriptContext1.js
new file mode 100644
index 00000000000..18224e195f4
--- /dev/null
+++ b/tests/baselines/reference/importCallExpressionInScriptContext1.js
@@ -0,0 +1,18 @@
+//// [tests/cases/conformance/es2018/dynamicImport/importCallExpressionInScriptContext1.ts] ////
+
+//// [0.ts]
+
+export function foo() { return "foo"; }
+
+//// [1.ts]
+var p1 = import("./0");
+function arguments() { } // this is allow as the file doesn't have implicit "use strict"
+
+//// [0.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+function foo() { return "foo"; }
+exports.foo = foo;
+//// [1.js]
+var p1 = Promise.resolve().then(() => require("./0"));
+function arguments() { } // this is allow as the file doesn't have implicit "use strict"
diff --git a/tests/baselines/reference/importCallExpressionInScriptContext1.symbols b/tests/baselines/reference/importCallExpressionInScriptContext1.symbols
new file mode 100644
index 00000000000..50ba482b03b
--- /dev/null
+++ b/tests/baselines/reference/importCallExpressionInScriptContext1.symbols
@@ -0,0 +1,12 @@
+=== tests/cases/conformance/es2018/dynamicImport/0.ts ===
+
+export function foo() { return "foo"; }
+>foo : Symbol(foo, Decl(0.ts, 0, 0))
+
+=== tests/cases/conformance/es2018/dynamicImport/1.ts ===
+var p1 = import("./0");
+>p1 : Symbol(p1, Decl(1.ts, 0, 3))
+
+function arguments() { } // this is allow as the file doesn't have implicit "use strict"
+>arguments : Symbol(arguments, Decl(1.ts, 0, 23))
+
diff --git a/tests/baselines/reference/importCallExpressionInScriptContext1.types b/tests/baselines/reference/importCallExpressionInScriptContext1.types
new file mode 100644
index 00000000000..fe8a94ddf84
--- /dev/null
+++ b/tests/baselines/reference/importCallExpressionInScriptContext1.types
@@ -0,0 +1,15 @@
+=== tests/cases/conformance/es2018/dynamicImport/0.ts ===
+
+export function foo() { return "foo"; }
+>foo : () => string
+>"foo" : "foo"
+
+=== tests/cases/conformance/es2018/dynamicImport/1.ts ===
+var p1 = import("./0");
+>p1 : Promise<typeof "tests/cases/conformance/es2018/dynamicImport/0">
+>import("./0") : Promise<typeof "tests/cases/conformance/es2018/dynamicImport/0">
+>"./0" : "./0"
+
+function arguments() { } // this is allow as the file doesn't have implicit "use strict"
+>arguments : () => void
+
diff --git a/tests/baselines/reference/importCallExpressionInSystem1.js b/tests/baselines/reference/importCallExpressionInSystem1.js
index 1a146b02fcd..d200111c70c 100644
--- a/tests/baselines/reference/importCallExpressionInSystem1.js
+++ b/tests/baselines/reference/importCallExpressionInSystem1.js
@@ -28,7 +28,6 @@ System.register([], function (exports_1, context_1) {
 });
 //// [1.js]
 System.register([], function (exports_1, context_1) {
-    "use strict";
     var __moduleName = context_1 && context_1.id;
     function foo() {
         const p2 = context_1.import("./0");
diff --git a/tests/baselines/reference/importCallExpressionInSystem2.js b/tests/baselines/reference/importCallExpressionInSystem2.js
index 198f4c4c7a2..704af5822b3 100644
--- a/tests/baselines/reference/importCallExpressionInSystem2.js
+++ b/tests/baselines/reference/importCallExpressionInSystem2.js
@@ -33,7 +33,6 @@ System.register([], function (exports_1, context_1) {
 });
 //// [2.js]
 System.register([], function (exports_1, context_1) {
-    "use strict";
     var __moduleName = context_1 && context_1.id;
     // We use Promise<any> for now as there is no way to specify shape of module object
     function foo(x) {
diff --git a/tests/baselines/reference/importCallExpressionInSystem4.js b/tests/baselines/reference/importCallExpressionInSystem4.js
index e3a938b826e..81562b65212 100644
--- a/tests/baselines/reference/importCallExpressionInSystem4.js
+++ b/tests/baselines/reference/importCallExpressionInSystem4.js
@@ -56,7 +56,6 @@ System.register([], function (exports_1, context_1) {
 });
 //// [2.js]
 System.register([], function (exports_1, context_1) {
-    "use strict";
     var __moduleName = context_1 && context_1.id;
     var C;
     return {
diff --git a/tests/baselines/reference/importCallExpressionSpecifierNotStringTypeError.js b/tests/baselines/reference/importCallExpressionSpecifierNotStringTypeError.js
index 23dd3425c45..57e42692d23 100644
--- a/tests/baselines/reference/importCallExpressionSpecifierNotStringTypeError.js
+++ b/tests/baselines/reference/importCallExpressionSpecifierNotStringTypeError.js
@@ -15,7 +15,6 @@ var p3 = import(["path1", "path2"]);
 var p4 = import(()=>"PathToModule");
 
 //// [importCallExpressionSpecifierNotStringTypeError.js]
-"use strict";
 // Error specifier is not assignable to string
 Promise.resolve().then(() => require(getSpecifier()));
 var p1 = Promise.resolve().then(() => require(getSpecifier()));
diff --git a/tests/baselines/reference/tsConfig/Default initialized TSConfig/tsconfig.json b/tests/baselines/reference/tsConfig/Default initialized TSConfig/tsconfig.json
index 97f59dea8ea..2a93230da51 100644
--- a/tests/baselines/reference/tsConfig/Default initialized TSConfig/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Default initialized TSConfig/tsconfig.json	
@@ -2,7 +2,7 @@
   "compilerOptions": {
     /* Basic Options */                       
     "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
-    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd' or 'es2015'. */
+    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'es2018'. */
     // "lib": [],                             /* Specify library files to be included in the compilation:  */
     // "allowJs": true,                       /* Allow javascript files to be compiled. */
     // "checkJs": true,                       /* Report errors in .js files. */
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with boolean value compiler options/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with boolean value compiler options/tsconfig.json
index b90e3fc6c58..f839d900336 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with boolean value compiler options/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with boolean value compiler options/tsconfig.json	
@@ -2,7 +2,7 @@
   "compilerOptions": {
     /* Basic Options */                       
     "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
-    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd' or 'es2015'. */
+    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'es2018'. */
     // "lib": [],                             /* Specify library files to be included in the compilation:  */
     // "allowJs": true,                       /* Allow javascript files to be compiled. */
     // "checkJs": true,                       /* Report errors in .js files. */
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with enum value compiler options/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with enum value compiler options/tsconfig.json
index 482cfa6a9d5..1c5cf4e955b 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with enum value compiler options/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with enum value compiler options/tsconfig.json	
@@ -2,7 +2,7 @@
   "compilerOptions": {
     /* Basic Options */                       
     "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
-    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd' or 'es2015'. */
+    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'es2018'. */
     // "lib": [],                             /* Specify library files to be included in the compilation:  */
     // "allowJs": true,                       /* Allow javascript files to be compiled. */
     // "checkJs": true,                       /* Report errors in .js files. */
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with files options/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with files options/tsconfig.json
index c6a26629dab..b9ab2eb2424 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with files options/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with files options/tsconfig.json	
@@ -2,7 +2,7 @@
   "compilerOptions": {
     /* Basic Options */                       
     "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
-    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd' or 'es2015'. */
+    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'es2018'. */
     // "lib": [],                             /* Specify library files to be included in the compilation:  */
     // "allowJs": true,                       /* Allow javascript files to be compiled. */
     // "checkJs": true,                       /* Report errors in .js files. */
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option value/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option value/tsconfig.json
index 72289dd1787..78b6a1db4d6 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option value/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option value/tsconfig.json	
@@ -2,7 +2,7 @@
   "compilerOptions": {
     /* Basic Options */                       
     "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
-    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd' or 'es2015'. */
+    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'es2018'. */
     "lib": ["es5","es2015.promise"],          /* Specify library files to be included in the compilation:  */
     // "allowJs": true,                       /* Allow javascript files to be compiled. */
     // "checkJs": true,                       /* Report errors in .js files. */
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option/tsconfig.json
index 97f59dea8ea..2a93230da51 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option/tsconfig.json	
@@ -2,7 +2,7 @@
   "compilerOptions": {
     /* Basic Options */                       
     "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
-    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd' or 'es2015'. */
+    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'es2018'. */
     // "lib": [],                             /* Specify library files to be included in the compilation:  */
     // "allowJs": true,                       /* Allow javascript files to be compiled. */
     // "checkJs": true,                       /* Report errors in .js files. */
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options with enum value/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options with enum value/tsconfig.json
index 1ac7c8c54da..4fdf66b54f8 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options with enum value/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options with enum value/tsconfig.json	
@@ -2,7 +2,7 @@
   "compilerOptions": {
     /* Basic Options */                       
     "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
-    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd' or 'es2015'. */
+    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'es2018'. */
     "lib": ["es5","es2015.core"],             /* Specify library files to be included in the compilation:  */
     // "allowJs": true,                       /* Allow javascript files to be compiled. */
     // "checkJs": true,                       /* Report errors in .js files. */
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options/tsconfig.json
index 33a9ecc5cd4..31a5ff24da5 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options/tsconfig.json	
@@ -2,7 +2,7 @@
   "compilerOptions": {
     /* Basic Options */                       
     "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
-    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd' or 'es2015'. */
+    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'es2018'. */
     // "lib": [],                             /* Specify library files to be included in the compilation:  */
     // "allowJs": true,                       /* Allow javascript files to be compiled. */
     // "checkJs": true,                       /* Report errors in .js files. */