clang-format: [JS] Fix indentation in dict literals.

Before:
  return {
    'finish':
        //
        a
        };

After:
  return {
    'finish':
        //
        a
  };

llvm-svn: 217235
diff --git a/clang/unittests/Format/FormatTestJS.cpp b/clang/unittests/Format/FormatTestJS.cpp
index fcddba7..55e7cc6 100644
--- a/clang/unittests/Format/FormatTestJS.cpp
+++ b/clang/unittests/Format/FormatTestJS.cpp
@@ -123,6 +123,11 @@
                "  // comment for tasks\n"
                "  tasks: false\n"
                "};");
+  verifyFormat("return {\n"
+               "  'finish':\n"
+               "      //\n"
+               "      a\n"
+               "};");
 }
 
 TEST_F(FormatTestJS, SpacesInContainerLiterals) {