GCC 4.2 only PRs

[Tobias Burnus <burnus at net-b dot de>]

Hello,

Ignoring one 4.0,4.1,4.2,4.3 regression (equivalence), we have the
following PRs with "4.2" in the summary ( http://tinyurl.com/yo7a59 ):

PR 31011 [4.2 and 4.1 only] Incorrect error: parameter array sections
rejects-valid bug, checked in by Paul today. Brooks suggested to
backport it for 4.2.0

PR 31001 [4.1/4.2 only] PACK crashes on zero-sized arrays
wrong-code bug, checked in by FX last Saturday.
As a wrong-code bug, I would suggest to backport it for 4.2.0

PR 30981 [4.2, 4.1 only] a ** exp fails for integer exponents if exp is
"-huge()-1" (endless loop)
wrong-code bug (endless loop), checked in by Thomas on Sunday.
Mark Mitchell gave his approval already.

PR30882 [4.1 and 4.2 only] size with initialization expression value for
dim= is rejected
Rejects-valid. Patch by Paul, checked in by me last Saturday.
I would like to backport it, but it is only reject-valid and not wrong code.
Ok for 4.2.0?

PR 30873 [4.1 and 4.2 only] ENTRY without explict RESULT does not work
for recursive functions
Rejects-valid. Patch by Paul, checked in by me last Friday.
I would like to backport it, but it is only reject-valid and not wrong code.
Ok for 4.2.0?

PR30865 [4.1, 4.2 only] optional argument passed on to size(...,dim=)
wrong-code. Patch by Thomas and Paul, fix me me. Checked in 26 Feb/1 Mar.
Is not that easy to trigger, but is wrong-code. I would like to see this
therefore be in 4.2.0rc1.

PR20896 [4.2 and 4.1 only] ambiguous interface not detected
<http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20896>accepts-invalid.
There is an old patch (Dec 27) which has been checked into the trunk.
(There is an additional patch which is not fully reviewed since Jan 1)
I don't think we need this (the first commit) before 4.2.0rc1.

If we agree on the PRs, we could send Mark Mitchell a single mail.

Tobias