Rename references to type traits the same as we rename the traits.

tools/clang/rewrite_to_chrome_style/RewriteToChromeStyle.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Changes Blink-style names to Chrome-style names. Currently transforms:
 //   fields:
 //     int m_operationCount => int operation_count_
 //   variables (including parameters):
 //     int mySuperVariable => int my_super_variable
 //   constants:
@@ skipping 1515 matching lines @@
       "expr",
       memberExpr(
           member(field_decl_matcher),
           // Needed to avoid matching member references in functions (which will
           // be an ancestor of the member reference) synthesized by the
           // compiler, such as a synthesized copy constructor.
           // This skips explicitly defaulted functions as well, but that's OK:
           // there's nothing interesting to rewrite in those either.
           unless(hasAncestor(functionDecl(isDefaulted())))));
   auto decl_ref_matcher = id("expr", declRefExpr(to(var_decl_matcher)));
+  auto type_trait_ref_matcher = id("expr", declRefExpr(to(type_trait_matcher)));
   auto enum_member_ref_matcher =
       id("expr", declRefExpr(to(enum_member_decl_matcher)));
 
   MemberRewriter member_rewriter(&replacements);
   match_finder.addMatcher(member_matcher, &member_rewriter);
 
   DeclRefRewriter decl_ref_rewriter(&replacements);
   match_finder.addMatcher(decl_ref_matcher, &decl_ref_rewriter);
 
+  DeclRefRewriter type_trait_ref_rewriter(&replacements);
+  type_trait_ref_rewriter.set_for_type_traits(true);
+  match_finder.addMatcher(type_trait_ref_matcher, &type_trait_ref_rewriter);
+
   EnumConstantDeclRefRewriter enum_member_ref_rewriter(&replacements);
   match_finder.addMatcher(enum_member_ref_matcher, &enum_member_ref_rewriter);
 
   // Member references in a non-member context ========
   // Given
   //   struct S {
   //     typedef int U::*UnspecifiedBoolType;
   //     operator UnspecifiedBoolType() { return s_ ? &U::s_ : 0; }
   //     int s_;
   //   };
@@ skipping 295 matching lines @@
   for (const auto& r : replacements) {
     std::string replacement_text = r.getReplacementText().str();
     std::replace(replacement_text.begin(), replacement_text.end(), '\n', '\0');
     llvm::outs() << "r:::" << r.getFilePath() << ":::" << r.getOffset()
                  << ":::" << r.getLength() << ":::" << replacement_text << "\n";
   }
   llvm::outs() << "==== END EDITS ====\n";
 
   return 0;
 }