Fix eval calls in initializers of arrow function parameters

src/parameter-initializer-rewriter.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/parameter-initializer-rewriter.h"
 
 #include "src/ast.h"
 #include "src/ast-expression-visitor.h"
 #include "src/scopes.h"
 
@@ skipping 57 matching lines @@
 
 
 }  // anonymous namespace
 
 
 void RewriteParameterInitializerScope(uintptr_t stack_limit,
                                       Expression* initializer, Scope* old_scope,
                                       Scope* new_scope) {
   Rewriter rewriter(stack_limit, initializer, old_scope, new_scope);
   rewriter.Run();
+
+  // Note that we can't safely un-set the calls_eval bit on the old scope.
+  if (old_scope->calls_eval()) new_scope->RecordEvalCall();

[rossberg, 2015/10/22 12:21:28]

I wonder about all the other scope flags. Do we know they aren't relevant?

 }
 
 
 }  // namespace internal
 }  // namespace v8