Move NumberToStringStub::GenerateLookupNumberStringCache to the MacroAssembler.

src/arm/macro-assembler-arm.h

Index: src/arm/macro-assembler-arm.h
diff --git a/src/arm/macro-assembler-arm.h b/src/arm/macro-assembler-arm.h
index 5b18ad4f32e726908fc685cc789cbe321b7220f5..6d08ab9bd1686b98e5d41a48a626b79d9a02aa61 100644
--- a/src/arm/macro-assembler-arm.h
+++ b/src/arm/macro-assembler-arm.h
@@ -1294,6 +1294,18 @@ class MacroAssembler: public Assembler {
   // ---------------------------------------------------------------------------
   // String utilities
 
+  // Generate code to do a lookup in the number string cache. If the number in
+  // the register object is found in the cache the generated code falls through
+  // with the result in the result register. The object and the result register
+  // can be the same. If the number is not found in the cache the code jumps to
+  // the label not_found with only the content of register object unchanged.
+  void LookupNumberStringCache(Register object,
+                               Register result,
+                               Register scratch1,
+                               Register scratch2,
+                               Register scratch3,
+                               Label* not_found);
+
   // Checks if both objects are sequential ASCII strings and jumps to label
   // if either is not. Assumes that neither object is a smi.
   void JumpIfNonSmisNotBothSequentialAsciiStrings(Register object1,