We build up a SCOPE_REF to remember that we saw a qualified-id in a 
template.  We also want to convert_from_reference so that a use of a 
reference member decays to a non-reference.  But we were doing them in 
the wrong order, so that the second operand of the SCOPE_REF was an 
INDIRECT_REF, which doesn't make sense.

Tested x86_64-pc-linux-gnu, applying to trunk.