add tests for modifiers

tests/cases/fourslash/refactorConvertArrowFunctionOrFunctionExpression_ToNamed_Modifier.ts

@@ -0,0 +1,17 @@
+/// <reference path='fourslash.ts' />
+
+//// export let foo = /*x*/a/*y*/ => {
+////    let b = 1;
+////    return a + b;
+//// };
+
+goTo.select("x", "y");
+edit.applyRefactor({
+    refactorName: "Convert arrow function or function expression",
+    actionName: "Convert to named function",
+    actionDescription: "Convert to named function",
+    newContent: `export function foo(a) {
+    let b = 1;
+    return a + b;
+}`,
+});

tests/cases/fourslash/refactorConvertArrowFunctionOrFunctionExpression_ToNamed_MultiDecl_Modifier.ts

@@ -0,0 +1,15 @@
+/// <reference path='fourslash.ts' />
+
+//// export let foo, bar = /*x*/(/*y*/) => 1 + 1;
+
+goTo.select("x", "y");
+edit.applyRefactor({
+    refactorName: "Convert arrow function or function expression",
+    actionName: "Convert to named function",
+    actionDescription: "Convert to named function",
+    newContent: `export let foo;
+export function bar() {
+    return 1 + 1;
+}
+`,
+});