[Patch, fortran] PR87477 - [meta-bug] [F03] issues concerning the ASSOCIATE statement

[Paul Richard Thomas]

Hi All,

This started out as the search for a fix to pr109948 and evolved to roll in
5 other prs.

Basically parse_associate was far too clunky and, in anycase, existing
functions in resolve.cc were well capable of doing the determination of the
target expression rank. While I was checking the comments, the lightbulb
flashed with respect to prs 102109/112/190 and the chunk dealing with
function results of unknown type was born.

Thanks to the changes in parse.cc, the problem in pr99326 migrated
upstream to the resolution and the chunklet in resolve.cc was an obvious
fix.

I am minded to s/{ dg-do run}/{ dg-do compile } for all six testcases. At
the testing stage, I wanted to check that the testcases actually did what
they are supposed to do :-)

Bootstraps and regtests OK - good for head?

Paul

PS I need to do some housekeeping on pr87477 now. Some of the blockers have
"fixed themselves" and others are awaiting backporting. I think that there
are only 4 or so left, of which 89645 and 99065 are the most difficult to
deal with.
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