Revert "VM: New calling convention for generated code."

runtime/vm/flow_graph_compiler.cc

Index: runtime/vm/flow_graph_compiler.cc
diff --git a/runtime/vm/flow_graph_compiler.cc b/runtime/vm/flow_graph_compiler.cc
index 9616d6391a5e459f515adcefe26d4c848021c4d2..54f18c111fa370fe41fcbb2e95a19f585713fabf 100644
--- a/runtime/vm/flow_graph_compiler.cc
+++ b/runtime/vm/flow_graph_compiler.cc
@@ -202,6 +202,8 @@ FlowGraphCompiler::FlowGraphCompiler(
                 LookupClass(Symbols::List()))),
         parallel_move_resolver_(this),
         pending_deoptimization_env_(NULL),
+        entry_patch_pc_offset_(Code::kInvalidPc),
+        patch_code_pc_offset_(Code::kInvalidPc),
         lazy_deopt_pc_offset_(Code::kInvalidPc),
         deopt_id_to_ic_data_(NULL),
         inlined_code_intervals_(Array::ZoneHandle(Object::empty_array().raw())),
@@ -920,6 +922,8 @@ void FlowGraphCompiler::FinalizePcDescriptors(const Code& code) {
       pc_descriptors_list_->FinalizePcDescriptors(code.EntryPoint()));
   if (!is_optimizing_) descriptors.Verify(parsed_function_.function());
   code.set_pc_descriptors(descriptors);
+  code.set_entry_patch_pc_offset(entry_patch_pc_offset_);
+  code.set_patch_code_pc_offset(patch_code_pc_offset_);
   code.set_lazy_deopt_pc_offset(lazy_deopt_pc_offset_);
 }