[Bug debug/55641] debug info for the type of a reference declared with a typedef has spurious 'const'

[dblaikie at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55641

--- Comment #1 from David Blaikie <dblaikie at gmail dot com> 2012-12-10 16:29:47 UTC ---
Oh, and, tellingly, GCC (7.5) emits a DW_TAG_const_type in the DWARF data that
Clang does not emit, which seems to be the relevant difference here.