VM: New calling convention for generated code.

runtime/vm/code_patcher.h

Index: runtime/vm/code_patcher.h
diff --git a/runtime/vm/code_patcher.h b/runtime/vm/code_patcher.h
index f563426099303e7af325bc9c96fcf02996f6cd30..ce909fd08b7a3f26a94478817b0e1f8c6d5989ce 100644
--- a/runtime/vm/code_patcher.h
+++ b/runtime/vm/code_patcher.h
@@ -17,6 +17,7 @@ class ExternalLabel;
 class Function;
 class ICData;
 class RawArray;
+class RawCode;
 class RawFunction;
 class RawICData;
 class RawObject;
@@ -45,12 +46,12 @@ class CodePatcher : public AllStatic {
   // Patch static call before return_address in given code to the new target.
   static void PatchStaticCallAt(uword return_address,
                                 const Code& code,
-                                uword new_target_address);
+                                const Code& new_target);
 
   // Patch instance call before return_address in given code to the new target.
   static void PatchInstanceCallAt(uword return_address,
                                   const Code& code,
-                                  uword new_target_address);
+                                  const Code& new_target);
 
   // Patch entry point with a jump as specified in the code's patch region.
   static void PatchEntry(const Code& code);
@@ -67,14 +68,14 @@ class CodePatcher : public AllStatic {
 
   // Return the target address of the static call before return_address
   // in given code.
-  static uword GetStaticCallTargetAt(uword return_address, const Code& code);
+  static RawCode* GetStaticCallTargetAt(uword return_address, const Code& code);
 
   // 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);
+  static RawCode* GetInstanceCallAt(uword return_address,
+                                    const Code& code,
+                                    ICData* ic_data);
 
   // Return target of an unoptimized static call and its ICData object
   // (calls target via a stub).
@@ -92,7 +93,7 @@ class CodePatcher : public AllStatic {
   static void SetPoolOffsetAt(uword return_address, int32_t offset);
   static void PatchPoolPointerCallAt(uword return_address,
                                      const Code& code,
-                                     uword new_target);
+                                     const Code& new_target);
 };
 
 }  // namespace dart