re PR fortran/20779 (ALLOCATEing the STAT variable not detected)

re PR fortran/20779 (ALLOCATEing the STAT variable not detected)

2006-10-03  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/20779
	PR fortran/20891
	* resolve.c (find_sym_in_expr): New function that returns true
	if a symbol is found in an expression.
	(resolve_allocate_expr): Check whether the STAT variable is
	itself allocated in the same statement.  Use the call above to
	check whether any of the allocated arrays are used in array
	specifications in the same statement.

2006-10-03  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/20779
	PR fortran/20891
	* gfortran.dg/alloc_alloc_expr_1.f90: New test.

From-SVN: r117415