add test cases

tests/cases/fourslash/refactorConvertStringOrTemplateLiteral_ToStringAsFnArgument.ts

@@ -0,0 +1,12 @@
+/// <reference path='fourslash.ts' />
+
+//// console.log(`/*x*/f/*y*/oobar is ${ 32 } years old`)
+
+goTo.select("x", "y");
+edit.applyRefactor({
+    refactorName: "Convert string concatenation or template literal",
+    actionName: "Convert to string concatenation",
+    actionDescription: "Convert to string concatenation",
+    newContent:
+`console.log("foobar is " + 32 + " years old")`,
+});

tests/cases/fourslash/refactorConvertStringOrTemplateLiteral_ToTemplateAsFnArgument.ts

@@ -0,0 +1,12 @@
+/// <reference path='fourslash.ts' />
+
+//// console.log("/*x*/f/*y*/oobar is " + 32 + " years old")
+
+goTo.select("x", "y");
+edit.applyRefactor({
+    refactorName: "Convert string concatenation or template literal",
+    actionName: "Convert to template literal",
+    actionDescription: "Convert to template literal",
+    newContent:
+`console.log(\`foobar is \${32} years old\`)`,
+});