Fixed lint errors caused by "runtime/references" rule and the rule itself is restored.

src/mips/lithium-codegen-mips.h

 // 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.
 
 #ifndef V8_MIPS_LITHIUM_CODEGEN_MIPS_H_
 #define V8_MIPS_LITHIUM_CODEGEN_MIPS_H_
 
 #include "src/deoptimizer.h"
 #include "src/mips/lithium-gap-resolver-mips.h"
 #include "src/mips/lithium-mips.h"
@@ skipping 298 matching lines @@
 
   // Emits optimized code for typeof x == "y".  Modifies input register.
   // Returns the condition on which a final split to
   // true and false label should be made, to optimize fallthrough.
   // Returns two registers in cmp1 and cmp2 that can be used in the
   // Branch instruction after EmitTypeofIs.
   Condition EmitTypeofIs(Label* true_label,
                          Label* false_label,
                          Register input,
                          Handle<String> type_name,
-                         Register& cmp1,
-                         Operand& cmp2);
+                         Register* cmp1,
+                         Operand* cmp2);
 
   // Emits optimized code for %_IsObject(x).  Preserves input register.
   // Returns the condition on which a final split to
   // true and false label should be made, to optimize fallthrough.
   Condition EmitIsObject(Register input,
                          Register temp1,
                          Register temp2,
                          Label* is_not_object,
                          Label* is_object);
 
@@ skipping 145 matching lines @@
   LCodeGen* codegen_;
   Label entry_;
   Label exit_;
   Label* external_exit_;
   int instruction_index_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_MIPS_LITHIUM_CODEGEN_MIPS_H_