Keep two empty lines between declarations for cpp files

src/mips/code-stubs-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // 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 6797 matching lines @@
   __ Branch(&miss, ne, a2, Operand(known_map_));
   __ Branch(&miss, ne, a3, Operand(known_map_));
 
   __ Ret(USE_DELAY_SLOT);
   __ subu(v0, a0, a1);
 
   __ bind(&miss);
   GenerateMiss(masm);
 }
 
+
 void ICCompareStub::GenerateMiss(MacroAssembler* masm) {
   {
     // Call the runtime system in a fresh internal frame.
     ExternalReference miss =
         ExternalReference(IC_Utility(IC::kCompareIC_Miss), masm->isolate());
     FrameScope scope(masm, StackFrame::INTERNAL);
     __ Push(a1, a0);
     __ push(ra);
     __ Push(a1, a0);
     __ li(t0, Operand(Smi::FromInt(op_)));
@@ skipping 310 matching lines @@
   __ Ret(USE_DELAY_SLOT);
   __ mov(result, zero_reg);
 }
 
 
 struct AheadOfTimeWriteBarrierStubList {
   Register object, value, address;
   RememberedSetAction action;
 };
 
+
 #define REG(Name) { kRegister_ ## Name ## _Code }
 
 static const AheadOfTimeWriteBarrierStubList kAheadOfTime[] = {
   // Used in RegExpExecStub.
   { REG(s2), REG(s0), REG(t3), EMIT_REMEMBERED_SET },
   // Used in CompileArrayPushCall.
   // Also used in StoreIC::GenerateNormal via GenerateDictionaryStore.
   // Also used in KeyedStoreIC::GenerateGeneric.
   { REG(a3), REG(t0), REG(t1), EMIT_REMEMBERED_SET },
   // Used in CompileStoreGlobal.
@@ skipping 691 matching lines @@
   __ bind(&fast_elements_case);
   GenerateCase(masm, FAST_ELEMENTS);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS