Bug 1342553, Bug 1343072, Bug 1344753 (details in the description)

Bug 1342553 - Part 0.1: Use try-catch for IteratorClose in for-of
Bug 1343072 - Update HasLiveStackValueAtDepth to follow the change in
JSTRY_FOR_OF
Bug 1344753 - Update for-of stack depth in
ControlFlowGenerator::processWhileOrForInLoop

Issue #74

js/src/jsapi.h

@@ -6622,5 +6622,14 @@ SetGetPerformanceGroupsCallback(JSContext*, GetGroupsCallback, void*);
 
 } /* namespace js */
 
+namespace js {
+
+enum class CompletionKind {
+    Normal,
+    Return,
+    Throw
+};
+
+} /* namespace js */
 
 #endif /* jsapi_h */