[gfortran] Allocate bugfix

[Paul Brook]

Attached patch fixes a bug with the allocate statement for non-array types.

Applied to tree-ssa branch.

Paul

2003-08-14  Paul Brook  <paul@nowt.org>

	* trans-stmt.c (gfc_trans_allocate): Handle NULL refs. Allocate the
	size of the type, not the pointer.
	* resolve.c (resolve_symbol): Give more accurate error message.

	* gfortran.fortran-torture/compile/allocate.f90: Also test scalars.

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