VM: New calling convention for generated code.

runtime/vm/stub_code.h

Index: runtime/vm/stub_code.h
diff --git a/runtime/vm/stub_code.h b/runtime/vm/stub_code.h
index 3d3c016fc935733cfa6f59f0db97f05b2855534b..e7da564b6b3ef075741fac31bf34b9cadb0b480b 100644
--- a/runtime/vm/stub_code.h
+++ b/runtime/vm/stub_code.h
@@ -165,9 +165,8 @@ class StubCode : public AllStatic {
                            void (*GenerateStub)(Assembler* assembler));
 
   static void GenerateMegamorphicMissStub(Assembler* assembler);
-  static void GenerateAllocationStubForClass(
-      Assembler* assembler, const Class& cls,
-      uword* entry_patch_offset, uword* patch_code_pc_offset);
+  static void GenerateAllocationStubForClass(Assembler* assembler,
+                                             const Class& cls);
   static void GenerateNArgsCheckInlineCacheStub(
       Assembler* assembler,
       intptr_t num_args,
@@ -180,6 +179,12 @@ class StubCode : public AllStatic {
   static void GenerateOptimizedUsageCounterIncrement(Assembler* assembler);
 };
 
+
+enum DeoptStubKind {
+  kLazyDeopt,
+  kEagerDeopt
+};
+
 }  // namespace dart
 
 #endif  // VM_STUB_CODE_H_