Fix eval calls in initializers of arrow function parameters

src/parameter-initializer-rewriter.cc

Index: src/parameter-initializer-rewriter.cc
diff --git a/src/parameter-initializer-rewriter.cc b/src/parameter-initializer-rewriter.cc
index 28f741c1f6238887a1cad6d185344b6aec2ecf62..2d6417ab19644a63679ad1579dfcd57865e57794 100644
--- a/src/parameter-initializer-rewriter.cc
+++ b/src/parameter-initializer-rewriter.cc
@@ -75,6 +75,9 @@ void RewriteParameterInitializerScope(uintptr_t stack_limit,
                                       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?

 }