src/vs/editor/contrib/suggest/browser/suggestModel.ts/SuggestModel/_onCompositionEnd
class SuggestModel:	private _onCompositionEnd(): void {
		// trigger or refilter when composition ends
		if (this._state === State.Idle) {
			this._doTriggerQuickSuggest();
		} else {
			this._refilterCompletionItems();
		}
	}