src/vs/workbench/api/browser/mainThreadSCM.ts/MainThreadSCMProvider/getOriginalResource
class MainThreadSCMProvider:	async getOriginalResource(uri: URI): Promise<URI | null> {
		if (!this.features.hasQuickDiffProvider) {
			return null;
		}

		const result = await this.proxy.$provideOriginalResource(this.handle, uri, CancellationToken.None);
		return result && URI.revive(result);
	}