Split off ParserBase into src/parser-base.h

src/parser.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_PARSER_H_
 #define V8_PARSER_H_
 
 #include "src/allocation.h"
 #include "src/ast.h"
 #include "src/compiler.h"  // TODO(titzer): remove this include dependency
+#include "src/parser-base.h"
 #include "src/pending-compilation-error-handler.h"
 #include "src/preparse-data.h"
 #include "src/preparse-data-format.h"
 #include "src/preparser.h"
 #include "src/scopes.h"
 
 namespace v8 {
 
 class ScriptCompiler;
 
@@ skipping 1318 matching lines @@
   auto* init_block =
       parser_->BuildParameterInitializationBlock(formal_parameters, ok);
   if (!*ok) return;
   if (init_block != nullptr) {
     body->Add(init_block, parser_->zone());
   }
 }
 } }  // namespace v8::internal
 
 #endif  // V8_PARSER_H_