clang-format: [JS] do not insert whitespace in call positions.

Summary:
In JavaScript, may keywords can be used in method names and thus call sites:

    foo.delete();
    foo.instanceof();

clang-format would previously insert whitespace after the `instanceof`. This
change generically skips inserting whitespace between a keyword and a
parenthesis if preceded by a dot, i.e. in a callsite.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D36142

llvm-svn: 310851
diff --git a/clang/unittests/Format/FormatTestJS.cpp b/clang/unittests/Format/FormatTestJS.cpp
index fb03506..57dc7c1 100644
--- a/clang/unittests/Format/FormatTestJS.cpp
+++ b/clang/unittests/Format/FormatTestJS.cpp
@@ -271,14 +271,21 @@
   verifyFormat("x.case = 1;");
   verifyFormat("x.interface = 1;");
   verifyFormat("x.for = 1;");
-  verifyFormat("x.of() = 1;");
+  verifyFormat("x.of();");
   verifyFormat("of(null);");
   verifyFormat("import {of} from 'x';");
-  verifyFormat("x.in() = 1;");
-  verifyFormat("x.let() = 1;");
-  verifyFormat("x.var() = 1;");
-  verifyFormat("x.for() = 1;");
-  verifyFormat("x.as() = 1;");
+  verifyFormat("x.in();");
+  verifyFormat("x.let();");
+  verifyFormat("x.var();");
+  verifyFormat("x.for();");
+  verifyFormat("x.as();");
+  verifyFormat("x.instanceof();");
+  verifyFormat("x.switch();");
+  verifyFormat("x.case();");
+  verifyFormat("x.delete();");
+  verifyFormat("x.throw();");
+  verifyFormat("x.throws();");
+  verifyFormat("x.if();");
   verifyFormat("x = {\n"
                "  a: 12,\n"
                "  interface: 1,\n"
@@ -1228,7 +1235,6 @@
   // But, of course, "catch" is a perfectly fine function name in JavaScript.
   verifyFormat("someObject.catch();");
   verifyFormat("someObject.new();");
-  verifyFormat("someObject.delete();");
 }
 
 TEST_F(FormatTestJS, StringLiteralConcatenation) {