const runtime.spanAllocPtrScalarBits

5 uses

	runtime (current package)
		mbitmap.go#L1888: 	s := mheap_.allocManual(pages, spanAllocPtrScalarBits)
		mbitmap.go#L1893: 	mheap_.freeManual(s, spanAllocPtrScalarBits)
		mheap.go#L886: 	spanAllocPtrScalarBits                      // unrolled GC prog bitmap span
		mheap.go#L1299: 	case spanAllocPtrScalarBits:
		mheap.go#L1503: 	case spanAllocPtrScalarBits: