[refactor] Separate generated builtins and C++ builtins into separate files

src/builtins/builtins-promise.h

 // Copyright 2016 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_BUILTINS_BUILTINS_PROMISE_H_
 #define V8_BUILTINS_BUILTINS_PROMISE_H_
 
 #include "src/code-stub-assembler.h"
 #include "src/contexts.h"
 
 namespace v8 {
 namespace internal {
 
-typedef compiler::Node Node;
-typedef CodeStubAssembler::ParameterMode ParameterMode;
 typedef compiler::CodeAssemblerState CodeAssemblerState;
 
 class PromiseBuiltinsAssembler : public CodeStubAssembler {
  public:
   enum PromiseResolvingFunctionContextSlot {
     // Whether the resolve/reject callback was already called.
     kAlreadyVisitedSlot = Context::MIN_CONTEXT_SLOTS,
 
     // The promise which resolve/reject callbacks fulfill.
     kPromiseSlot,
@@ skipping 15 matching lines @@
   //
   // This is also used by the PromiseValueThunkFinally to store the
   // value in the onFinallySlot and PromiseThrowerFinally to store the
   // reason in the onFinallySlot.
   enum PromiseFinallyContextSlot {
     kOnFinallySlot = Context::MIN_CONTEXT_SLOTS,
 
     kOnFinallyContextLength,
   };
 
-  explicit PromiseBuiltinsAssembler(CodeAssemblerState* state)
+  explicit PromiseBuiltinsAssembler(compiler::CodeAssemblerState* state)
       : CodeStubAssembler(state) {}
   // These allocate and initialize a promise with pending state and
   // undefined fields.
   //
   // This uses undefined as the parent promise for the promise init
   // hook.
   Node* AllocateAndInitJSPromise(Node* context);
   // This uses the given parent as the parent promise for the promise
   // init hook.
   Node* AllocateAndInitJSPromise(Node* context, Node* parent);
@@ skipping 76 matching lines @@
   Node* CreateThrowerFunction(Node* reason, Node* native_context);
 
  private:
   Node* AllocateJSPromise(Node* context);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BUILTINS_BUILTINS_PROMISE_H_