src/vs/workbench/contrib/codeEditor/browser/suggestEnabledInput/suggestEnabledInput.ts/SuggestEnabledInputWithHistory/addToHistory
class SuggestEnabledInputWithHistory:	public addToHistory(): void {
		const value = this.getValue();
		if (value && value !== this.getCurrentValue()) {
			this.history.add(value);
		}
	}