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

Before:
  someVariable = {'a':[{}]};

After:
  someVariable = {'a': [{}]};

llvm-svn: 208403
diff --git a/clang/unittests/Format/FormatTestJS.cpp b/clang/unittests/Format/FormatTestJS.cpp
index 73e050d..cc67416 100644
--- a/clang/unittests/Format/FormatTestJS.cpp
+++ b/clang/unittests/Format/FormatTestJS.cpp
@@ -85,6 +85,7 @@
 
   verifyFormat("var obj = {a: 1, b: 2, c: 3};",
                getChromiumStyle(FormatStyle::LK_JavaScript));
+  verifyFormat("someVariable = {'a': [{}]};");
 }
 
 TEST_F(FormatTestJS, SingleQuoteStrings) {