Function chakracore_sys::JsTTDNotifyYield

pub unsafe extern "system" fn JsTTDNotifyYield() -> JsErrorCode

TTD API -- may change in future versions: Notify the Js runtime we are at a safe yield point in the event loop (i.e. no locals on the stack and we can proccess as desired).

The code JsNoError if the operation succeeded, a failure code otherwise.