src/vs/platform/instantiation/common/instantiationService.ts/Trace/traceInvocation
class Trace:	static traceInvocation(ctor: any): Trace {
		return !_enableTracing ? Trace._None : new Trace(TraceType.Invocation, ctor.name || (ctor.toString() as string).substring(0, 42).replace(/\n/g, ''));
	}