Refactoring various pieces of post interceptor caching.

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 f20eeee63e0cd4197aa0929f6e7b19c61616207c..59920f961d84bc06a3a84e58e296929fc3934cd1 100644
--- a/src/arm/macro-assembler-arm.h
+++ b/src/arm/macro-assembler-arm.h
@@ -135,6 +135,9 @@ class MacroAssembler: public Assembler {
                       const ParameterCount& actual,
                       InvokeFlag flag);
 
+  void InvokeFunction(JSFunction* function,
+                      const ParameterCount& actual);
+
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
   // ---------------------------------------------------------------------------
@@ -335,6 +338,10 @@ class MacroAssembler: public Assembler {
   // Convenience function: Same as above, but takes the fid instead.
   void CallRuntime(Runtime::FunctionId fid, int num_arguments);
 
+  // Convenience function: call an external reference.
+  void CallExternalReference(const ExternalReference& ext,
+                             int num_arguments);
+
   // Tail call of a runtime routine (jump).
   // Like JumpToRuntime, but also takes care of passing the number
   // of parameters.