const runtime.traceEvGoInSyscall

2 uses

	runtime (current package)
		trace.go#L56: 	traceEvGoInSyscall       = 32 // denotes that goroutine is in syscall when tracing starts [timestamp, goroutine id]
		trace.go#L242: 			traceEvent(traceEvGoInSyscall, -1, uint64(gp.goid))