src/vs/workbench/api/common/extHostSCM.ts/ExtHostSCM/$onInputBoxValueChange
class ExtHostSCM:	$onInputBoxValueChange(sourceControlHandle: number, value: string): Promise<void> {
		this.logService.trace('ExtHostSCM#$onInputBoxValueChange', sourceControlHandle);

		const sourceControl = this._sourceControls.get(sourceControlHandle);

		if (!sourceControl) {
			return Promise.resolve(undefined);
		}

		sourceControl.inputBox.$onInputBoxValueChange(value);
		return Promise.resolve(undefined);
	}