MIPS: Replace custom builtin invocation instructions by a generic version.

src/mips/lithium-codegen-mips.cc

Index: src/mips/lithium-codegen-mips.cc
diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index a096709cb818b43448b6e621f57108b2c5e492f4..87d64e238b1d0e19ecd5dbcef7ea32d0111fa568 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -5734,33 +5734,6 @@ void LCodeGen::DoDummyUse(LDummyUse* instr) {
 }
 
 
-void LCodeGen::DoDeleteProperty(LDeleteProperty* instr) {
-  Register object = ToRegister(instr->object());
-  Register key = ToRegister(instr->key());
-  Register strict = scratch0();
-  __ li(strict, Operand(Smi::FromInt(strict_mode_flag())));
-  __ Push(object, key, strict);
-  ASSERT(instr->HasPointerMap());
-  LPointerMap* pointers = instr->pointer_map();
-  RecordPosition(pointers->position());
-  SafepointGenerator safepoint_generator(
-      this, pointers, Safepoint::kLazyDeopt);
-  __ InvokeBuiltin(Builtins::DELETE, CALL_FUNCTION, safepoint_generator);
-}
-
-
-void LCodeGen::DoIn(LIn* instr) {
-  Register obj = ToRegister(instr->object());
-  Register key = ToRegister(instr->key());
-  __ Push(key, obj);
-  ASSERT(instr->HasPointerMap());
-  LPointerMap* pointers = instr->pointer_map();
-  RecordPosition(pointers->position());
-  SafepointGenerator safepoint_generator(this, pointers, Safepoint::kLazyDeopt);
-  __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator);
-}
-
-
 void LCodeGen::DoDeferredStackCheck(LStackCheck* instr) {
   PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters);
   __ CallRuntimeSaveDoubles(Runtime::kStackGuard);