VM: Re-format to use at most one newline between functions

runtime/vm/assembler_dbc.h

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_VM_ASSEMBLER_DBC_H_
 #define RUNTIME_VM_ASSEMBLER_DBC_H_
 
 #ifndef RUNTIME_VM_ASSEMBLER_H_
 #error Do not include assembler_dbc.h directly; use assembler.h instead.
 #endif
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/constants_dbc.h"
 #include "vm/cpu.h"
 #include "vm/hash_map.h"
 #include "vm/object.h"
 #include "vm/simulator.h"
 
 namespace dart {
 
-
 // Dummy declaration to make things compile.
 class Address : public ValueObject {
  private:
   Address();
 };
 
-
 class Label : public ValueObject {
  public:
   Label() : position_(0) {}
 
   ~Label() {
     // Assert if label is being destroyed with unresolved branches pending.
     ASSERT(!IsLinked());
   }
 
   // Returns the position for bound and linked labels. Cannot be used
@@ skipping 21 matching lines @@
   void LinkTo(intptr_t position) {
     ASSERT(!IsBound());
     position_ = position + kWordSize;
     ASSERT(IsLinked());
   }
 
   friend class Assembler;
   DISALLOW_COPY_AND_ASSIGN(Label);
 };
 
-
 class Assembler : public ValueObject {
  public:
   explicit Assembler(bool use_far_branches = false) : buffer_(), comments_() {}
 
   ~Assembler() {}
 
   void Bind(Label* label);
   void Jump(Label* label);
 
   // Misc. functionality
@@ skipping 49 matching lines @@
 
 #define PARAMS_0
 #define PARAMS_A_D uintptr_t ra, uintptr_t rd
 #define PARAMS_D uintptr_t rd
 #define PARAMS_A_B_C uintptr_t ra, uintptr_t rb, uintptr_t rc
 #define PARAMS_A uintptr_t ra
 #define PARAMS_X intptr_t x
 #define PARAMS_T intptr_t x
 #define PARAMS_A_X uintptr_t ra, intptr_t x
 
-
   BYTECODES_LIST(DECLARE_EMIT)
 
 #undef PARAMS_0
 #undef PARAMS_A_D
 #undef PARAMS_D
 #undef PARAMS_A_B_C
 #undef PARAMS_A
 #undef PARAMS_X
 #undef PARAMS_T
 #undef PARAMS_A_X
@@ skipping 26 matching lines @@
 
     DISALLOW_COPY_AND_ASSIGN(CodeComment);
   };
 
   GrowableArray<CodeComment*> comments_;
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
-
 }  // namespace dart
 
 #endif  // RUNTIME_VM_ASSEMBLER_DBC_H_