Eliminate use of CompilationInfo in several AstVisitor descendants.

src/typing.h

 // Copyright 2013 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_TYPING_H_
 #define V8_TYPING_H_
 
 #include "src/allocation.h"
 #include "src/ast.h"
 #include "src/effects.h"
 #include "src/scopes.h"
 #include "src/type-info.h"
 #include "src/types.h"
 #include "src/zone.h"
 
 namespace v8 {
 namespace internal {
 
 
 class AstTyper: public AstVisitor {
  public:
-  explicit AstTyper(CompilationInfo* info);
+  AstTyper(Isolate* isolate, Zone* zone, Handle<JSFunction> closure,
+           Scope* scope, BailoutId osr_ast_id, FunctionLiteral* root);
   void Run();
 
   DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
 
  private:
   Effect ObservedOnStack(Object* value);
   void ObserveTypesAtOsrEntry(IterationStatement* stmt);
 
   static const int kNoVar = INT_MIN;
   typedef v8::internal::Effects<int, kNoVar> Effects;
   typedef v8::internal::NestedEffects<int, kNoVar> Store;
 
-  CompilationInfo* info_;
+  Handle<JSFunction> closure_;
+  Scope* scope_;
+  BailoutId osr_ast_id_;
+  FunctionLiteral* root_;
   TypeFeedbackOracle oracle_;
   Store store_;
 
   TypeFeedbackOracle* oracle() { return &oracle_; }
 
   void NarrowType(Expression* e, Bounds b) {
     e->set_bounds(Bounds::Both(e->bounds(), b, zone()));
   }
   void NarrowLowerType(Expression* e, Type* t) {
     e->set_bounds(Bounds::NarrowLower(e->bounds(), t, zone()));
@@ skipping 22 matching lines @@
 #define DECLARE_VISIT(type) virtual void Visit##type(type* node) override;
   AST_NODE_LIST(DECLARE_VISIT)
 #undef DECLARE_VISIT
 
   DISALLOW_COPY_AND_ASSIGN(AstTyper);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_TYPING_H_