extensions/extension-editing/src/extensionLinter.ts/ExtensionLinter/loadPackageJson
class ExtensionLinter:	private async loadPackageJson(folder: Uri) {
		if (folder.scheme === 'git') { // #36236
			return undefined;
		}
		const file = folder.with({ path: path.posix.join(folder.path, 'package.json') });
		try {
			const document = await workspace.openTextDocument(file);
			return parseTree(document.getText());
		} catch (err) {
			return undefined;
		}
	}