const runtime.traceEvHeapObjectFree

2 uses

	runtime (current package)
		traceallocfree.go#L126: 	tl.eventWriter(traceGoRunning, traceProcRunning).event(traceEvHeapObjectFree, traceHeapObjectID(addr))
		traceexp.go#L57: 	traceEvHeapObjectFree  // heap object free [timestamp, id]