const runtime.spanAllocHeap

8 uses

	runtime (current package)
		mheap.go#L884: 	spanAllocHeap          spanAllocType = iota // heap span
		mheap.go#L892: 	return s != spanAllocHeap
		mheap.go#L912: 		s = h.allocSpan(npages, spanAllocHeap, spanclass)
		mheap.go#L1283: 	if typ == spanAllocHeap {
		mheap.go#L1295: 	case spanAllocHeap:
		mheap.go#L1440: 		h.freeSpanLocked(s, spanAllocHeap)
		mheap.go#L1489: 	if typ == spanAllocHeap {
		mheap.go#L1499: 	case spanAllocHeap:

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)