src/vs/workbench/services/workingCopy/common/untitledFileWorkingCopy.ts/UntitledFileWorkingCopy/save
class UntitledFileWorkingCopy:	async save(options?: ISaveOptions): Promise<boolean> {
		this.trace('save()');

		const result = await this.saveDelegate(this, options);

		// Emit Save Event
		if (result) {
			this._onDidSave.fire({ reason: options?.reason, source: options?.source });
		}

		return result;
	}