extensions/typescript-language-features/src/utils/configuration.ts/ImplicitProjectConfiguration/readExperimentalDecorators
class ImplicitProjectConfiguration:	private static readExperimentalDecorators(configuration: vscode.WorkspaceConfiguration): boolean {
		return configuration.get<boolean>('js/ts.implicitProjectConfig.experimentalDecorators')
			?? configuration.get<boolean>('javascript.implicitProjectConfig.experimentalDecorators', false);
	}