clang-format: [JS] Supprot "catch" as function name.

Before:
  someObject.catch ();

After:
  someObject.catch();

llvm-svn: 217158
diff --git a/clang/unittests/Format/FormatTestJS.cpp b/clang/unittests/Format/FormatTestJS.cpp
index 4b0d1e7..5bb1a38 100644
--- a/clang/unittests/Format/FormatTestJS.cpp
+++ b/clang/unittests/Format/FormatTestJS.cpp
@@ -254,6 +254,9 @@
                "} finally {\n"
                "  h();\n"
                "}");
+
+  // But, of course, "catch" is a perfectly fine function name in JavaScript.
+  verifyFormat("someObject.catch();");
 }
 
 TEST_F(FormatTestJS, StringLiteralConcatenation) {