c++: Consistently expose singleton overloads

[Nathan Sidwell]

This is a patch from my name-lookup overhaul.  I noticed the parser
and one path in name-lookup looked through an overload of a single
known decl.  It seems more consistent to do that in both paths through
name-lookup, and not in the parser itself.

         gcc/cp/
         * name-lookup.c (lookup_qualified_name): Expose an overload of a
         singleton with known type.
         (lookup_name_1): Just check the overload's type to expose it.
         * parser.c (cp_parser_lookup_name): Do not do that check here.

pushing to trunk

nathan

-- 
Nathan Sidwell
-------------- next part --------------
A non-text attachment was scrubbed...
Name: using.diff
Type: text/x-patch
Size: 1734 bytes
Desc: not available
URL: <https://gcc.gnu.org/pipermail/gcc-patches/attachments/20201106/6a080abd/attachment.bin>