Eagerly extract stack limit from Isolate in InitializeAstVisitor()

src/interpreter/bytecode-generator.cc

 // Copyright 2015 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/interpreter/bytecode-generator.h"
 
 #include <stack>
 
 #include "src/compiler.h"
 #include "src/interpreter/control-flow-builders.h"
@@ skipping 114 matching lines @@
   ControlScope* current = this;
   do {
     if (current->Execute(command, statement)) return;
     current = current->outer();
   } while (current != nullptr);
   UNREACHABLE();
 }
 
 
 BytecodeGenerator::BytecodeGenerator(Isolate* isolate, Zone* zone)
-    : builder_(isolate, zone),
+    : isolate_(isolate),
+      builder_(isolate, zone),
       info_(nullptr),
       scope_(nullptr),
       globals_(0, zone),
       control_scope_(nullptr),
       current_context_(Register::function_context()) {
   InitializeAstVisitor(isolate, zone);
 }
 
 
 BytecodeGenerator::~BytecodeGenerator() {}
@@ skipping 843 matching lines @@
 }
 
 
 int BytecodeGenerator::feedback_index(FeedbackVectorSlot slot) const {
   return info()->feedback_vector()->GetIndex(slot);
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8