extensions/typescript-language-features/src/tsServer/bufferSyncSupport.ts/BufferSyncSupport/toResource
class BufferSyncSupport:	public toResource(filePath: string): vscode.Uri {
		const buffer = this.syncedBuffers.getForPath(filePath);
		if (buffer) {
			return buffer.resource;
		}
		return vscode.Uri.file(filePath);
	}