Move NumberToStringStub::GenerateLookupNumberStringCache to the MacroAssembler.

src/ia32/builtins-ia32.cc

Index: src/ia32/builtins-ia32.cc
diff --git a/src/ia32/builtins-ia32.cc b/src/ia32/builtins-ia32.cc
index 91eba9805ad0ee6e21b483a74f4665daf6b23f57..5169627906fd4511c9ee01a9a755b659cccddaca 100644
--- a/src/ia32/builtins-ia32.cc
+++ b/src/ia32/builtins-ia32.cc
@@ -1065,13 +1065,11 @@ void Builtins::Generate_StringConstructCode(MacroAssembler* masm) {
 
   // Lookup the argument in the number to string cache.
   Label not_cached, argument_is_string;
-  NumberToStringStub::GenerateLookupNumberStringCache(
-      masm,
-      eax,  // Input.
-      ebx,  // Result.
-      ecx,  // Scratch 1.
-      edx,  // Scratch 2.
-      &not_cached);
+  __ LookupNumberStringCache(eax,  // Input.
+                             ebx,  // Result.
+                             ecx,  // Scratch 1.
+                             edx,  // Scratch 2.
+                             &not_cached);
   __ IncrementCounter(counters->string_ctor_cached_number(), 1);
   __ bind(&argument_is_string);
   // ----------- S t a t e -------------