}
		if e == nil {
			break
		}
		switch e.Tag {
		case dwarf.TagVariable:
			name, _ := e.Val(dwarf.AttrName).(string)
			// As of https://reviews.llvm.org/D123534, clang
			// now emits DW_TAG_variable DIEs that have
			// no name (so as to be able to describe the
			// type and source locations of constant strings)
			// like the second arg in the call below:
			//
			//     myfunction(42, "foo")
			//

func (x xlMetaV2VersionHeader) hasEC() bool {
	return x.EcM > 0 && x.EcN > 0
}

// sortsBefore can be used as a tiebreaker for stable sorting/selecting.
// Returns false on ties.
func (x xlMetaV2VersionHeader) sortsBefore(o xlMetaV2VersionHeader) bool {
	if x == o {
		return false
	}
	// Prefer newest modtime.
	if x.ModTime != o.ModTime {
		return x.ModTime > o.ModTime
	}