extensions/typescript-language-features/src/tsServer/bufferSyncSupport.ts/BufferSyncSupport/updateConfiguration
class BufferSyncSupport:	private updateConfiguration() {
		const jsConfig = vscode.workspace.getConfiguration('javascript', null);
		const tsConfig = vscode.workspace.getConfiguration('typescript', null);

		this._validateJavaScript = jsConfig.get<boolean>('validate.enable', true);
		this._validateTypeScript = tsConfig.get<boolean>('validate.enable', true);
	}