[Patch, Fortran, OOP] PR 50625: [4.6/4.7 Regression] ALLOCATABLE attribute lost for module CLASS variables

[Janus Weil]

Hi all,

here is a small patch for an OOP regression. The title of the PR is a
bit misleading, since it's actually not the ALLOCATABLE attribute
which gets lost, but the 'class_ok' attribute, which we use for
checking if a class declaration is valid. When reading class variables
from a module, we can just set this attribute to '1' (if there was an
error, it would have been caught earlier).

Moreover there was a slight problem with backend_decl's not being
present for class symbols, which is being fixed by the hunk in
trans-decl.c.

Regtested successfully on x86_64-unknown-linux-gnu (except for failure
on entry_4 and select_type_12, which are known middle-end
regressions). Ok for trunk and 4.6?

Cheers,
Janus


2011-10-07  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/50625
	* class.c (gfc_build_class_symbol): Fix whitespace.
	* module.c (mio_symbol): Set 'class_ok' attribute.
	* trans-decl.c (gfc_get_symbol_decl): Make sure the backend_decl has
	been built for class symbols.


2011-10-07  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/50625
	* gfortran.dg/class_46.f03: New.
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