[fullcodegen] Remove with-statement support.

src/compiler/ast-graph-builder.cc

 // 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.
 
 #include "src/compiler/ast-graph-builder.h"
 
 #include "src/ast/compile-time-value.h"
 #include "src/ast/scopes.h"
 #include "src/compilation-info.h"
 #include "src/compiler.h"
@@ skipping 1043 matching lines @@
 
 
 void AstGraphBuilder::VisitReturnStatement(ReturnStatement* stmt) {
   VisitForValue(stmt->expression());
   Node* result = environment()->Pop();
   execution_control()->ReturnValue(result);
 }
 
 
 void AstGraphBuilder::VisitWithStatement(WithStatement* stmt) {
-  VisitForValue(stmt->expression());
-  Node* value = environment()->Pop();
-  Node* object = BuildToObject(value, stmt->ToObjectId());
-  Handle<ScopeInfo> scope_info = stmt->scope()->scope_info();
-  const Operator* op = javascript()->CreateWithContext(scope_info);
-  Node* context = NewNode(op, object, GetFunctionClosureForContext());
-  PrepareFrameState(context, stmt->EntryId());
-  VisitInScope(stmt->statement(), stmt->scope(), context);
+  // Dynamic scoping is supported only by going through Ignition first.
+  UNREACHABLE();
 }
 
 
 void AstGraphBuilder::VisitSwitchStatement(SwitchStatement* stmt) {
   ZoneList<CaseClause*>* clauses = stmt->cases();
   SwitchBuilder compare_switch(this, clauses->length());
   ControlScopeForBreakable scope(this, stmt, &compare_switch);
   compare_switch.BeginSwitch();
   int default_index = -1;
 
@@ skipping 1386 matching lines @@
   globals()->clear();
 }
 
 
 void AstGraphBuilder::VisitIfNotNull(Statement* stmt) {
   if (stmt == nullptr) return;
   Visit(stmt);
 }
 
 
-void AstGraphBuilder::VisitInScope(Statement* stmt, Scope* s, Node* context) {
-  ContextScope scope(this, s, context);
-  DCHECK(s->declarations()->is_empty());
-  Visit(stmt);
-}
-
 void AstGraphBuilder::VisitIterationBody(IterationStatement* stmt,
                                          LoopBuilder* loop,
                                          BailoutId stack_check_id) {
   ControlScopeForIteration scope(this, stmt, loop);
   if (FLAG_turbo_loop_stackcheck || !info()->shared_info()->asm_function()) {
     Node* node = NewNode(javascript()->StackCheck());
     PrepareFrameState(node, stack_check_id);
   }
   Visit(stmt->body());
 }
@@ skipping 1139 matching lines @@
     float invocation_frequency, LoopAssignmentAnalysis* loop_assignment,
     SourcePositionTable* source_positions, int inlining_id)
     : AstGraphBuilder(local_zone, info, jsgraph, invocation_frequency,
                       loop_assignment),
       source_positions_(source_positions),
       start_position_(info->shared_info()->start_position(), inlining_id) {}
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8