[cleanup] Remove dead code from DeclareLookupSlot and rename it

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

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_MIPS64
 
 // Note on Mips implementation:
 //
 // The result_register() for mips is the 'v0' register, which is defined
 // by the ABI to contain function return values. However, the first
@@ skipping 785 matching lines @@
 
     case VariableLocation::LOOKUP: {
       Comment cmnt(masm_, "[ VariableDeclaration");
       __ li(a2, Operand(variable->name()));
       // Declaration nodes are always introduced in one of four modes.
       DCHECK(IsDeclaredVariableMode(mode));
       DCHECK(!hole_init);
       DCHECK(Smi::FromInt(0) == 0);
       __ mov(a0, zero_reg);  // Smi::FromInt(0) indicates no initial value.
       __ Push(a2, a0);
-      __ Push(Smi::FromInt(variable->DeclarationPropertyAttributes()));
       __ CallRuntime(Runtime::kDeclareLookupSlot);
       PrepareForBailoutForId(proxy->id(), BailoutState::NO_REGISTERS);
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::VisitFunctionDeclaration(
     FunctionDeclaration* declaration) {
@@ skipping 37 matching lines @@
       PrepareForBailoutForId(proxy->id(), BailoutState::NO_REGISTERS);
       break;
     }
 
     case VariableLocation::LOOKUP: {
       Comment cmnt(masm_, "[ FunctionDeclaration");
       __ li(a2, Operand(variable->name()));
       PushOperand(a2);
       // Push initial value for function declaration.
       VisitForStackValue(declaration->fun());
-      PushOperand(Smi::FromInt(variable->DeclarationPropertyAttributes()));
       CallRuntimeWithOperands(Runtime::kDeclareLookupSlot);
       PrepareForBailoutForId(proxy->id(), BailoutState::NO_REGISTERS);
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) {
   // Call the runtime to declare the globals.
@@ skipping 2952 matching lines @@
          reinterpret_cast<uint64_t>(
              isolate->builtins()->OnStackReplacement()->entry()));
   return ON_STACK_REPLACEMENT;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64