[runtime] Kill %Arguments and %ArgumentsLength.

src/full-codegen/mips64/full-codegen-mips64.cc

Index: src/full-codegen/mips64/full-codegen-mips64.cc
diff --git a/src/full-codegen/mips64/full-codegen-mips64.cc b/src/full-codegen/mips64/full-codegen-mips64.cc
index 971de277b8d59304a086f495e90083451e788547..19fe1190adcb1382a0acbdd0f7c8da386ea2661a 100644
--- a/src/full-codegen/mips64/full-codegen-mips64.cc
+++ b/src/full-codegen/mips64/full-codegen-mips64.cc
@@ -3144,42 +3144,6 @@ void FullCodeGenerator::EmitObjectEquals(CallRuntime* expr) {
 }
 
 
-void FullCodeGenerator::EmitArguments(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  // ArgumentsAccessStub expects the key in a1 and the formal
-  // parameter count in a0.
-  VisitForAccumulatorValue(args->at(0));
-  __ mov(a1, v0);
-  __ li(a0, Operand(Smi::FromInt(info_->scope()->num_parameters())));
-  ArgumentsAccessStub stub(isolate(), ArgumentsAccessStub::READ_ELEMENT);
-  __ CallStub(&stub);
-  context()->Plug(v0);
-}
-
-
-void FullCodeGenerator::EmitArgumentsLength(CallRuntime* expr) {
-  DCHECK(expr->arguments()->length() == 0);
-  Label exit;
-  // Get the number of formal parameters.
-  __ li(v0, Operand(Smi::FromInt(info_->scope()->num_parameters())));
-
-  // Check if the calling frame is an arguments adaptor frame.
-  __ ld(a2, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
-  __ ld(a3, MemOperand(a2, StandardFrameConstants::kContextOffset));
-  __ Branch(&exit, ne, a3,
-            Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
-
-  // Arguments adaptor case: Read the arguments length from the
-  // adaptor frame.
-  __ ld(v0, MemOperand(a2, ArgumentsAdaptorFrameConstants::kLengthOffset));
-
-  __ bind(&exit);
-  context()->Plug(v0);
-}
-
-
 void FullCodeGenerator::EmitClassOf(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);