[fullcodegen] Remove with-statement support.

src/full-codegen/full-codegen.cc

 // 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.
 
 #include "src/full-codegen/full-codegen.h"
 
 #include "src/ast/ast-numbering.h"
 #include "src/ast/ast.h"
 #include "src/ast/prettyprinter.h"
 #include "src/ast/scopes.h"
@@ skipping 1096 matching lines @@
 void FullCodeGenerator::VisitReturnStatement(ReturnStatement* stmt) {
   Comment cmnt(masm_, "[ ReturnStatement");
   SetStatementPosition(stmt);
   Expression* expr = stmt->expression();
   VisitForAccumulatorValue(expr);
   EmitUnwindAndReturn();
 }
 
 
 void FullCodeGenerator::VisitWithStatement(WithStatement* stmt) {
-  Comment cmnt(masm_, "[ WithStatement");
-  SetStatementPosition(stmt);
-
-  VisitForAccumulatorValue(stmt->expression());
-  Callable callable = CodeFactory::ToObject(isolate());
-  __ Move(callable.descriptor().GetRegisterParameter(0), result_register());
-  __ Call(callable.code(), RelocInfo::CODE_TARGET);
-  RestoreContext();
-  PrepareForBailoutForId(stmt->ToObjectId(), BailoutState::TOS_REGISTER);
-  PushOperand(result_register());
-  PushOperand(stmt->scope()->scope_info());
-  PushFunctionArgumentForContextAllocation();
-  CallRuntimeWithOperands(Runtime::kPushWithContext);
-  StoreToFrameField(StandardFrameConstants::kContextOffset, context_register());
-  PrepareForBailoutForId(stmt->EntryId(), BailoutState::NO_REGISTERS);
-
-  Scope* saved_scope = scope();
-  scope_ = stmt->scope();
-  { WithOrCatch body(this);
-    Visit(stmt->statement());
-  }
-  scope_ = saved_scope;
-
-  // Pop context.
-  LoadContextField(context_register(), Context::PREVIOUS_INDEX);
-  // Update local stack frame context field.
-  StoreToFrameField(StandardFrameConstants::kContextOffset, context_register());
+  // Dynamic scoping is not supported.
+  UNREACHABLE();
 }
 
 
 void FullCodeGenerator::VisitDoWhileStatement(DoWhileStatement* stmt) {
   Comment cmnt(masm_, "[ DoWhileStatement");
   // Do not insert break location as we do that below.
   SetStatementPosition(stmt, SKIP_BREAK);
 
   Label body, book_keeping;
 
@@ skipping 508 matching lines @@
   return info_->has_simple_parameters();
 }
 
 FunctionLiteral* FullCodeGenerator::literal() const { return info_->literal(); }
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8