Make helper functions static to avoid accidental collision and potentially aid optimization.

runtime/vm/object.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 6806 matching lines @@
   const char* function_name = String::Handle(name()).ToCString();
   intptr_t len = OS::SNPrint(NULL, 0, kFormat, function_name,
                              static_str, abstract_str, kind_str, const_str) + 1;
   char* chars = Isolate::Current()->current_zone()->Alloc<char>(len);
   OS::SNPrint(chars, len, kFormat, function_name,
               static_str, abstract_str, kind_str, const_str);
   return chars;
 }
 
 
-const char* GetFunctionServiceId(const Function& f, const Class& cls) {
+static const char* GetFunctionServiceId(const Function& f, const Class& cls) {
   Zone* zone = Isolate::Current()->current_zone();
   // Special kinds of functions use indices in their respective lists.
   intptr_t id = -1;
   const char* selector = NULL;
   if (f.IsNonImplicitClosureFunction()) {
     id = cls.FindClosureIndex(f);
     selector = "closures";
   } else if (f.IsImplicitClosureFunction()) {
     id = cls.FindImplicitClosureFunctionIndex(f);
     selector = "implicit_closures";
@@ skipping 13794 matching lines @@
   return tag_label.ToCString();
 }
 
 
 void UserTag::PrintJSONImpl(JSONStream* stream, bool ref) const {
   Instance::PrintJSONImpl(stream, ref);
 }
 
 
 }  // namespace dart