Rollback of r11118, r11109 in trunk branch.

src/mips/lithium-mips.cc

Index: src/mips/lithium-mips.cc
diff --git a/src/mips/lithium-mips.cc b/src/mips/lithium-mips.cc
index dca90a151f8ed73c946abc30479b73497cfbfe0d..1e0c2160aaf25ef356ab7a73a14392d4d727664c 100644
--- a/src/mips/lithium-mips.cc
+++ b/src/mips/lithium-mips.cc
@@ -1076,8 +1076,7 @@ LInstruction* LChunkBuilder::DoArgumentsLength(HArgumentsLength* length) {
 
 
 LInstruction* LChunkBuilder::DoArgumentsElements(HArgumentsElements* elems) {
-  return DefineAsRegister(new(zone()) LArgumentsElements(
-      current_block_->last_environment()->outer() != NULL));
+  return DefineAsRegister(new(zone()) LArgumentsElements);
 }
 
 
@@ -2278,9 +2277,6 @@ LInstruction* LChunkBuilder::DoEnterInlined(HEnterInlined* instr) {
                                                undefined,
                                                instr->call_kind(),
                                                instr->is_construct());
-  if (instr->materializes_arguments()) {
-    inner->Bind(instr->arguments(), graph()->GetArgumentsObject());
-  }
   current_block_->UpdateEnvironment(inner);
   chunk_->AddInlinedClosure(instr->closure());
   return NULL;
@@ -2288,21 +2284,10 @@ LInstruction* LChunkBuilder::DoEnterInlined(HEnterInlined* instr) {
 
 
 LInstruction* LChunkBuilder::DoLeaveInlined(HLeaveInlined* instr) {
-  LInstruction* pop = NULL;
-
-  HEnvironment* env = current_block_->last_environment();
-
-  if (instr->arguments_pushed()) {
-    int argument_count = env->arguments_environment()->parameter_count();
-    pop = new(zone()) LPop(argument_count);
-    argument_count_ -= argument_count;
-  }
-
   HEnvironment* outer = current_block_->last_environment()->
       DiscardInlined(false);
   current_block_->UpdateEnvironment(outer);
-
-  return pop;
+  return NULL;
 }