const runtime.traceEvHeapGoal

3 uses

	runtime (current package)
		trace.go#L58: 	traceEvHeapGoal          = 34 // gcController.heapGoal (formerly next_gc) change [timestamp, heap goal in bytes]
		trace.go#L1167: 		traceEvent(traceEvHeapGoal, -1, 0)
		trace.go#L1169: 		traceEvent(traceEvHeapGoal, -1, heapGoal)