clang-format: [JS] support trailing commas in imports.

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: http://reviews.llvm.org/D22147

llvm-svn: 274976

clang/lib/Format/SortJavaScriptImports.cpp

@@ -396,6 +396,8 @@ private:
     // {sym as alias, sym2 as ...} from '...';
     nextToken();
     while (true) {
+      if (Current->is(tok::r_brace))
+        return true;
       if (Current->isNot(tok::identifier))
         return false;