clang-format: [JS] Fix incorrect space when "as" is used as identifier.

Before:
  aaaaa.as ();

After:
  aaaaa.as();

llvm-svn: 285672
diff --git a/clang/unittests/Format/FormatTestJS.cpp b/clang/unittests/Format/FormatTestJS.cpp
index 846abaf..f4b5059 100644
--- a/clang/unittests/Format/FormatTestJS.cpp
+++ b/clang/unittests/Format/FormatTestJS.cpp
@@ -136,6 +136,7 @@
   verifyFormat("x.let() = 1;");
   verifyFormat("x.var() = 1;");
   verifyFormat("x.for() = 1;");
+  verifyFormat("x.as() = 1;");
   verifyFormat("x = {\n"
                "  a: 12,\n"
                "  interface: 1,\n"