Fix incorrect patching for OSR.

src/full-codegen.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1679 matching lines @@
   unoptimized->set_back_edges_patched_for_osr(false);
   unoptimized->set_allow_osr_at_loop_nesting_level(0);
   // Assert that none of the back edges are patched anymore.
   ASSERT(Verify(isolate, unoptimized, -1));
 }
 
 
 void BackEdgeTable::AddStackCheck(CompilationInfo* info) {
   DisallowHeapAllocation no_gc;
   Isolate* isolate = info->isolate();
-  Code* code = info->shared_info()->code();
+  Code* code = *info->osr_patched_code();
   Address pc = code->instruction_start() + info->osr_pc_offset();
+  ASSERT_EQ(info->osr_ast_id().ToInt(),
+            code->TranslatePcOffsetToAstId(info->osr_pc_offset()).ToInt());
   ASSERT_EQ(ON_STACK_REPLACEMENT, GetBackEdgeState(isolate, code, pc));
   Code* patch = isolate->builtins()->builtin(Builtins::kOsrAfterStackCheck);
   PatchAt(code, pc, OSR_AFTER_STACK_CHECK, patch);
 }
 
 
 void BackEdgeTable::RemoveStackCheck(CompilationInfo* info) {
   DisallowHeapAllocation no_gc;
   Isolate* isolate = info->isolate();
-  Code* code = info->shared_info()->code();
+  Code* code = *info->osr_patched_code();
   Address pc = code->instruction_start() + info->osr_pc_offset();
+  ASSERT_EQ(info->osr_ast_id().ToInt(),
+            code->TranslatePcOffsetToAstId(info->osr_pc_offset()).ToInt());
   if (GetBackEdgeState(isolate, code, pc) == OSR_AFTER_STACK_CHECK) {
     Code* patch = isolate->builtins()->builtin(Builtins::kOnStackReplacement);
     PatchAt(code, pc, ON_STACK_REPLACEMENT, patch);
   }
 }
 
 
 #ifdef DEBUG
 bool BackEdgeTable::Verify(Isolate* isolate,
                            Code* unoptimized,
@@ skipping 12 matching lines @@
   }
   return true;
 }
 #endif  // DEBUG
 
 
 #undef __
 
 
 } }  // namespace v8::internal