Add rename tests for function expressions.

tests/cases/fourslash/renameInfoForFunctionExpression01.ts

@@ -0,0 +1,8 @@
+/// <reference path='fourslash.ts'/>
+
+////var x = function /**/[|f|](g: any, h: any) {
+////    f(f, g);
+////}
+
+goTo.marker();
+verify.renameInfoSucceeded("f");

tests/cases/fourslash/renameLocationsForFunctionExpression01.ts

@@ -0,0 +1,12 @@
+/// <reference path='fourslash.ts'/>
+
+////var x = function /*1*/[|f|](g: any, h: any) {
+////    /*2*/[|f|](/*3*/[|f|], g);
+////}
+
+let markers = test.markers()
+for (let marker of markers) {
+    goTo.position(marker.position);
+
+    verify.renameLocations(/*findInStrings*/ false, /*findInComments*/ false);
+}