[turbofan] Cleanup Parameter creation in AstGraphBuilder.

src/compiler/ast-graph-builder.h

 // Copyright 2014 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_COMPILER_AST_GRAPH_BUILDER_H_
 #define V8_COMPILER_AST_GRAPH_BUILDER_H_
 
 #include "src/ast.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/liveness-analyzer.h"
@@ skipping 239 matching lines @@
 
   // ===========================================================================
   // The following build methods all generate graph fragments and return one
   // resulting node. The operand stack height remains the same, variables and
   // other dependencies tracked by the environment might be mutated though.
 
   // Builder to create a receiver check for sloppy mode.
   Node* BuildPatchReceiverToGlobalProxy(Node* receiver);
 
   // Builders to create local function, script and block contexts.
-  Node* BuildLocalFunctionContext(Node* context, Node* patched_receiver);
+  Node* BuildLocalFunctionContext(Node* context);
   Node* BuildLocalScriptContext(Scope* scope);
   Node* BuildLocalBlockContext(Scope* scope);
 
   // Builder to create an arguments object if it is used.
   Node* BuildArgumentsObject(Variable* arguments);
 
   // Builder to create an array of rest parameters if used
   Node* BuildRestArgumentsArray(Variable* rest, int index);
 
   // Builder that assigns to the .this_function internal variable if needed.
@@ skipping 157 matching lines @@
   int stack_height() {
     return static_cast<int>(values()->size()) - parameters_count_ -
            locals_count_;
   }
 
   // Operations on parameter or local variables.
   void Bind(Variable* variable, Node* node);
   Node* Lookup(Variable* variable);
   void MarkAllLocalsLive();
 
+  // Raw operations on parameter variables.
+  void RawParameterBind(int index, Node* node);
+  Node* RawParameterLookup(int index);
+
   // Operations on the context chain.
   Node* Context() const { return contexts_.back(); }
   void PushContext(Node* context) { contexts()->push_back(context); }
   void PopContext() { contexts()->pop_back(); }
   void TrimContextChain(int trim_to_length) {
     contexts()->resize(trim_to_length);
   }
 
   // Operations on the operand stack.
   void Push(Node* node) {
@@ skipping 99 matching lines @@
 
   // Prepare environment to be used as loop header.
   void PrepareForLoop(BitVector* assigned, bool is_osr = false);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_AST_GRAPH_BUILDER_H_