Keep two empty lines between declarations for cpp files

test/cctest/test-assembler-x64.cc

 // Copyright 2009 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 92 matching lines @@
   __ nop();
   __ ret(0);
 
   CodeDesc desc;
   assm.GetCode(&desc);
   // Call the function from C++.
   int result =  FUNCTION_CAST<F2>(buffer)(3, 2);
   CHECK_EQ(2, result);
 }
 
+
 TEST(AssemblerX64StackOperations) {
   OS::SetUp();
   // Allocate an executable page of memory.
   size_t actual_size;
   byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize,
                                                  &actual_size,
                                                  true));
   CHECK(buffer);
   Assembler assm(Isolate::Current(), buffer, static_cast<int>(actual_size));
 
@@ skipping 12 matching lines @@
   __ nop();
   __ ret(0);
 
   CodeDesc desc;
   assm.GetCode(&desc);
   // Call the function from C++.
   int result =  FUNCTION_CAST<F2>(buffer)(3, 2);
   CHECK_EQ(2, result);
 }
 
+
 TEST(AssemblerX64ArithmeticOperations) {
   OS::SetUp();
   // Allocate an executable page of memory.
   size_t actual_size;
   byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize,
                                                  &actual_size,
                                                  true));
   CHECK(buffer);
   Assembler assm(Isolate::Current(), buffer, static_cast<int>(actual_size));
 
   // Assemble a simple function that adds arguments returning the sum.
   __ movq(rax, arg2);
   __ addq(rax, arg1);
   __ ret(0);
 
   CodeDesc desc;
   assm.GetCode(&desc);
   // Call the function from C++.
   int result =  FUNCTION_CAST<F2>(buffer)(3, 2);
   CHECK_EQ(5, result);
 }
 
+
 TEST(AssemblerX64ImulOperation) {
   OS::SetUp();
   // Allocate an executable page of memory.
   size_t actual_size;
   byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize,
                                                  &actual_size,
                                                  true));
   CHECK(buffer);
   Assembler assm(Isolate::Current(), buffer, static_cast<int>(actual_size));
 
   // Assemble a simple function that multiplies arguments returning the high
   // word.
   __ movq(rax, arg2);
   __ imul(arg1);
   __ movq(rax, rdx);
   __ ret(0);
 
   CodeDesc desc;
   assm.GetCode(&desc);
   // Call the function from C++.
   int result =  FUNCTION_CAST<F2>(buffer)(3, 2);
   CHECK_EQ(0, result);
   result =  FUNCTION_CAST<F2>(buffer)(0x100000000l, 0x100000000l);
   CHECK_EQ(1, result);
   result =  FUNCTION_CAST<F2>(buffer)(-0x100000000l, 0x100000000l);
   CHECK_EQ(-1, result);
 }
 
+
 TEST(AssemblerX64MemoryOperands) {
   OS::SetUp();
   // Allocate an executable page of memory.
   size_t actual_size;
   byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize,
                                                  &actual_size,
                                                  true));
   CHECK(buffer);
   Assembler assm(Isolate::Current(), buffer, static_cast<int>(actual_size));
 
@@ skipping 14 matching lines @@
   __ nop();
   __ ret(0);
 
   CodeDesc desc;
   assm.GetCode(&desc);
   // Call the function from C++.
   int result =  FUNCTION_CAST<F2>(buffer)(3, 2);
   CHECK_EQ(3, result);
 }
 
+
 TEST(AssemblerX64ControlFlow) {
   OS::SetUp();
   // Allocate an executable page of memory.
   size_t actual_size;
   byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize,
                                                  &actual_size,
                                                  true));
   CHECK(buffer);
   Assembler assm(Isolate::Current(), buffer, static_cast<int>(actual_size));
 
   // Assemble a simple function that copies argument 1 and returns it.
   __ push(rbp);
 
   __ movq(rbp, rsp);
   __ movq(rax, arg1);
   Label target;
   __ jmp(&target);
   __ movq(rax, arg2);
   __ bind(&target);
   __ pop(rbp);
   __ ret(0);
 
   CodeDesc desc;
   assm.GetCode(&desc);
   // Call the function from C++.
   int result =  FUNCTION_CAST<F2>(buffer)(3, 2);
   CHECK_EQ(3, result);
 }
 
+
 TEST(AssemblerX64LoopImmediates) {
   OS::SetUp();
   // Allocate an executable page of memory.
   size_t actual_size;
   byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize,
                                                  &actual_size,
                                                  true));
   CHECK(buffer);
   Assembler assm(Isolate::Current(), buffer, static_cast<int>(actual_size));
   // Assemble two loops using rax as counter, and verify the ending counts.
@@ skipping 157 matching lines @@
 
   F0 f = FUNCTION_CAST<F0>(code->entry());
   int res = f();
   CHECK_EQ(42, res);
 }
 
 
 
 
 #undef __