src/vs/base/common/resources.ts/ExtUri/normalizePath
class ExtUri:	normalizePath(resource: URI): URI {
		if (!resource.path.length) {
			return resource;
		}
		let normalizedPath: string;
		if (resource.scheme === Schemas.file) {
			normalizedPath = URI.file(paths.normalize(originalFSPath(resource))).path;
		} else {
			normalizedPath = paths.posix.normalize(resource.path);
		}
		return resource.with({
			path: normalizedPath
		});
	}