re PR fortran/34975 (Bogus error with USEing modules)

re PR fortran/34975 (Bogus error with USEing modules)

2008-01-30  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/34975
	* symbol.c (gfc_delete_symtree, gfc_undo_symbols): Rename
	delete_symtree to gfc_delete_symtree.
	* gfortran.h : Add prototype for gfc_delete_symtree.
	* module.c (load_generic_interfaces): Transfer symbol to a
	unique symtree and delete old symtree, instead of renaming.
	(read_module): The rsym and the found symbol are the same, so
	the found symtree can be deleted.

	PR fortran/34429
	* decl.c (match_char_spec): Remove the constraint on deferred
	matching of functions and free the length expression.
	delete_symtree to gfc_delete_symtree.
	(gfc_match_type_spec): Whitespace.
	(gfc_match_function_decl): Defer characteristic association for
	all types except BT_UNKNOWN.
	* parse.c (decode_specification_statement): Only derived type
	function matching is delayed to the end of specification.

2008-01-30  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/34975
	* gfortran.dg/use_only_3.f90: New test.
	* gfortran.dg/use_only_3.inc: Modules for new test.

	PR fortran/34429
	* gfortran.dg/function_charlen_2.f90: New test.

From-SVN: r131956