func gocoreName(dt dwarf.Type) string {
	switch x := dt.(type) {
	case *dwarf.PtrType:
		if _, ok := x.Type.(*dwarf.VoidType); ok {
			return "unsafe.Pointer"
		}
		return "*" + gocoreName(x.Type)
	case *dwarf.ArrayType:
		return fmt.Sprintf("[%d]%s", x.Count, gocoreName(x.Type))
	case *dwarf.StructType:
		if !strings.HasPrefix(x.StructName, "struct {") {
			// This is a named type, return that name.
			return x.StructName
		}
		// Build gocore name from the DWARF fields.
		s := "struct {"
		first := true
		for _, f := range x.Field {
			if !first {
				s += ";"
			}
			name := f.Name
			if i := strings.Index(name, "."); i >= 0 {
				// Remove pkg path from field names.
				name = name[i+1:]
			}
			s += fmt.Sprintf(" %s %s", name, gocoreName(f.Type))
			first = false
		}
		s += " }"
		return s
	default:
		return dt.String()
	}
}
func gocoreName(dt dwarf.Type) string {
	switch x := dt.(type) {
	case *dwarf.PtrType:
		if _, ok := x.Type.(*dwarf.VoidType); ok {
			return "unsafe.Pointer"
		}
		return "*" + gocoreName(x.Type)
	case *dwarf.ArrayType:
		return fmt.Sprintf("[%d]%s", x.Count, gocoreName(x.Type))
	case *dwarf.StructType:
		if !strings.HasPrefix(x.StructName, "struct {") {
			// This is a named type, return that name.
			return x.StructName
		}
		// Build gocore name from the DWARF fields.
		s := "struct {"
		first := true
		for _, f := range x.Field {
			if !first {
				s += ";"
			}
			name := f.Name
			if i := strings.Index(name, "."); i >= 0 {
				// Remove pkg path from field names.
				name = name[i+1:]
			}
			s += fmt.Sprintf(" %s %s", name, gocoreName(f.Type))
			first = false
		}
		s += " }"
		return s
	default:
		return dt.String()
	}
}
// gocoreName generates the name this package uses to refer to a dwarf type.
// This name differs from the dwarf name in that it stays closer to the Go name for the type.
// For instance (dwarf name -> gocoreName)
//   struct runtime.siginfo -> runtime.siginfo
//   *void -> unsafe.Pointer
//   struct struct { runtime.signalLock uint32; runtime.hz int32 } -> struct { signalLock uint32; hz int32 }