Tom Tromey
47cd8fcf54
A user reported that certain operations -- like printing a large structure -- could be slow. I tracked this down to ada-lang.c:map_matching_symbols taking an inordinate amount of time. Specifically, calls like the one to look for a parallel "__XVZ" variable, in ada_to_fixed_type_1, could result in gdb walking over all the entries in the cooked index over and over. Looking into this reveals that cooked_index_functions::expand_matching_symbols is not written efficiently -- it ignores its "ordered_compare" parameter. While fixing this would be good, it turns out that this entire method isn't needed; so this series removes it. However, the deletion is not done in this patch. This one, instead, fixes the immediate cause of the slowdown, by using objfile::expand_symtabs_matching when possible. This approach is faster because it is more selective about which index entries to examine.
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