const runtime.tracebackShift

8 uses

	runtime (current package)
		runtime1.go#L22: 	tracebackShift = iota
		runtime1.go#L25: var traceback_cache uint32 = 2 << tracebackShift
		runtime1.go#L45: 		level = int32(t >> tracebackShift)
		runtime1.go#L412: 		t = 1 << tracebackShift
		runtime1.go#L414: 		t = 1<<tracebackShift | tracebackAll
		runtime1.go#L416: 		t = 2<<tracebackShift | tracebackAll
		runtime1.go#L418: 		t = 2<<tracebackShift | tracebackAll | tracebackCrash
		runtime1.go#L422: 			t |= uint32(n) << tracebackShift