Add target ES5 emit

tests/cases/conformance/es2018/dynamicImport/importCallExpressionES5AMD.ts

@@ -0,0 +1,15 @@
+// @module: amd
+// @target: es5
+// @filename: 0.ts
+export function foo() { return "foo"; }
+
+// @filename: 1.ts
+import("./0");
+var p1 = import("./0");
+p1.then(zero => {
+    return zero.foo();
+});
+
+function foo() {
+    const p2 = import("./0");
+}

tests/cases/conformance/es2018/dynamicImport/importCallExpressionES5CJS.ts

@@ -0,0 +1,15 @@
+// @module: commonjs
+// @target: esnext
+// @filename: 0.ts
+export function foo() { return "foo"; }
+
+// @filename: 1.ts
+import("./0");
+var p1 = import("./0");
+p1.then(zero => {
+    return zero.foo();
+});
+
+function foo() {
+    const p2 = import("./0");
+}

tests/cases/conformance/es2018/dynamicImport/importCallExpressionES5System.ts

@@ -0,0 +1,15 @@
+// @module: system
+// @target: esnext
+// @filename: 0.ts
+export function foo() { return "foo"; }
+
+// @filename: 1.ts
+import("./0");
+var p1 = import("./0");
+p1.then(zero => {
+    return zero.foo();
+});
+
+function foo() {
+    const p2 = import("./0");
+}

tests/cases/conformance/es2018/dynamicImport/importCallExpressionES5UMD.ts

@@ -0,0 +1,15 @@
+// @module: umd
+// @target: esnext
+// @filename: 0.ts
+export function foo() { return "foo"; }
+
+// @filename: 1.ts
+import("./0");
+var p1 = import("./0");
+p1.then(zero => {
+    return zero.foo();
+});
+
+function foo() {
+    const p2 = import("./0");
+}