[patch, fortran] PR31716 segfault with real array bounds

[Jerry DeLisle]

:ADDPATCH fortran:

This patch is self explanatory and eliminates this segfault on invalid code.

Regression tested on x86-64-gnu-linux.

OK for trunk and later 4.2.1

Regards,

Jerry

2007-05-18  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/31716
	* array.c (spec_dimen_size): Test for correct BT_INTEGER type.
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