[runtime] DeclareGlobals and DeclareLookupSlot don't need context parameters.

src/mips/lithium-codegen-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.7
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3503 matching lines @@
     // If there is no frame, the context must be in cp.
     DCHECK(result.is(cp));
   }
 }
 
 
 void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) {
   DCHECK(ToRegister(instr->context()).is(cp));
   __ li(scratch0(), instr->hydrogen()->pairs());
   __ li(scratch1(), Operand(Smi::FromInt(instr->hydrogen()->flags())));
-  // The context is the first argument.
-  __ Push(cp, scratch0(), scratch1());
-  CallRuntime(Runtime::kDeclareGlobals, 3, instr);
+  __ Push(scratch0(), scratch1());
+  CallRuntime(Runtime::kDeclareGlobals, 2, instr);
 }
 
 
 void LCodeGen::CallKnownFunction(Handle<JSFunction> function,
                                  int formal_parameter_count, int arity,
                                  LInstruction* instr) {
   bool dont_adapt_arguments =
       formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel;
   bool can_invoke_directly =
       dont_adapt_arguments || formal_parameter_count == arity;
@@ skipping 2523 matching lines @@
   __ Push(at, ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8