Fix behavior of throw on yield*.

src/parsing/parser.h

Index: src/parsing/parser.h
diff --git a/src/parsing/parser.h b/src/parsing/parser.h
index 572b11fe098029a2d5c102f522706de3ab6b2314..1c66cba893e39321439df1ae82296b854cc9f018 100644
--- a/src/parsing/parser.h
+++ b/src/parsing/parser.h
@@ -683,10 +683,10 @@ class ParserTraits {
   Parser* parser_;
 
   void BuildIteratorClose(ZoneList<Statement*>* statements, Variable* iterator,
-                          Maybe<Variable*> input, Variable* output);
-  void BuildIteratorCloseForCompletion(
-      ZoneList<Statement*>* statements, Variable* iterator,
-      Variable* body_threw);
+                          Variable* input, Variable* output);
+  void BuildIteratorCloseForCompletion(ZoneList<Statement*>* statements,
+                                       Variable* iterator,
+                                       Expression* completion);
   Statement* CheckCallable(Variable* var, Expression* error, int pos);
 };