Add support for object pool

runtime/vm/code_patcher.h

Index: runtime/vm/code_patcher.h
===================================================================
--- runtime/vm/code_patcher.h	(revision 18597)
+++ runtime/vm/code_patcher.h	(working copy)
@@ -25,10 +25,14 @@
   // Dart static calls have a distinct, machine-dependent code pattern.
 
   // Patch static call to the new target.
-  static void PatchStaticCallAt(uword addr, uword new_target_address);
+  static void PatchStaticCallAt(uword return_address,
+                                const Code& code,

[srdjan, 2013/02/15 21:24:27]

Please modify comment/variable name 'code' to explain what 'code' is for.

[regis, 2013/02/15 22:51:31]

Done.

+                                uword new_target_address);
 
   // Patch instance call to the new target.
-  static void PatchInstanceCallAt(uword addr, uword new_target_address);
+  static void PatchInstanceCallAt(uword return_address,
+                                  const Code& code,

[srdjan, 2013/02/15 21:24:27]

ditto here and below.

[regis, 2013/02/15 22:51:31]

Done.

+                                  uword new_target_address);
 
   // Patch entry point with a jump as specified in the code's patch region.
   static void PatchEntry(const Code& code);
@@ -40,16 +44,13 @@
   // that there are no conflicts with object pointers). Used in ASSERTs.
   static bool CodeIsPatchable(const Code& code);
 
-  // Returns true if the code before return_address is a static
-  // or dynamic Dart call.
-  static bool IsDartCall(uword return_address);
+  static uword GetStaticCallTargetAt(uword return_address, const Code& code);
 
-  static uword GetStaticCallTargetAt(uword return_address);
-
   // Get instance call information.  Returns the call target and sets each
   // of the output parameters ic_data and arguments_descriptor if they are
   // non-NULL.
   static uword GetInstanceCallAt(uword return_address,
+                                 const Code& code,
                                  ICData* ic_data,
                                  Array* arguments_descriptor);