Use unordered_map

Author: peadar

libpstack/dwarf.h

@@ -158,11 +158,7 @@ class Entry {
  Entries children;
  const Unit *unit;
  const Abbreviation *type;
-#ifdef NOTYET
  std::unordered_map<AttrName, Attribute> attributes;
-#else
- std::map<AttrName, Attribute> attributes;
-#endif
  const Attribute *attrForName(AttrName name) const;
  const Entry *referencedEntry(AttrName name) const;
  Entry(DWARFReader &, size_t, Unit *);