Fix crash in debug builds introduced with r21110.

src/x64/lithium-x64.cc

Index: src/x64/lithium-x64.cc
diff --git a/src/x64/lithium-x64.cc b/src/x64/lithium-x64.cc
index d7ddb9ea0145e1e49b14c11da76cec312bb5e5c3..e8dd5bb63f02b7f79ff3ff9ca9438260fe9ee079 100644
--- a/src/x64/lithium-x64.cc
+++ b/src/x64/lithium-x64.cc
@@ -439,18 +439,12 @@ LPlatformChunk* LChunkBuilder::Build() {
 }
 
 
-void LCodeGen::Abort(BailoutReason reason) {
+void LChunkBuilder::Abort(BailoutReason reason) {
   info()->set_bailout_reason(reason);
   status_ = ABORTED;
 }
 
 
-void LChunkBuilder::AddDeprecationDependency(Handle<Map> map) {
-  if (map->is_deprecated()) return Abort(kMapBecameDeprecated);
-  chunk_->AddDeprecationDependency(map);
-}
-
-
 LUnallocated* LChunkBuilder::ToUnallocated(Register reg) {
   return new(zone()) LUnallocated(LUnallocated::FIXED_REGISTER,
                                   Register::ToAllocationIndex(reg));
@@ -2320,11 +2314,6 @@ LInstruction* LChunkBuilder::DoStoreNamedField(HStoreNamedField* instr) {
   LOperand* temp = (!is_in_object || needs_write_barrier ||
       needs_write_barrier_for_map) ? TempRegister() : NULL;
 
-  // Add a deprecation dependency on the transition target map.
-  if (instr->has_transition()) {
-    AddDeprecationDependency(instr->transition_map());
-  }
-
   LInstruction* result = new(zone()) LStoreNamedField(obj, val, temp);
   if (!instr->access().IsExternalMemory() &&
       instr->field_representation().IsHeapObject() &&