Merge pull request #13476 from Microsoft/findallrefs_unclosure

Move code out of closure in `getReferencedSymbolsForNode`

tests/cases/fourslash/findAllRefsForRest.ts

@@ -7,6 +7,5 @@
 ////let t: Gen;
 ////var { x, ...rest } = t;
 ////rest.[|parent|];
-const ranges = test.ranges();
-verify.referencesOf(ranges[0], ranges);
-verify.referencesOf(ranges[1], ranges);
+
+verify.rangesReferenceEachOther();