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