extensions/typescript-language-features/src/utils/configuration.ts/TypeScriptServiceConfiguration/readUseSeparateSyntaxServer
class TypeScriptServiceConfiguration:	private static readUseSeparateSyntaxServer(configuration: vscode.WorkspaceConfiguration): SeparateSyntaxServerConfiguration {
		const value = configuration.get<boolean | string>('typescript.tsserver.useSeparateSyntaxServer', true);
		if (value === 'forAllRequests') {
			return SeparateSyntaxServerConfiguration.ForAllRequests;
		}
		if (value === true) {
			return SeparateSyntaxServerConfiguration.Enabled;
		}
		return SeparateSyntaxServerConfiguration.Disabled;
	}