except.c (expand_builtin_frob_return_addr): Add missing call to convert_memory_address #ifdef POINTERS_EXTEND_UNSIGNED.

	* except.c (expand_builtin_frob_return_addr): Add missing call
	to convert_memory_address #ifdef POINTERS_EXTEND_UNSIGNED.
	(expand_builtin_eh_return): Likewise.
	(expand_eh_return): Clean up ptr_mode != Pmode cases.

From-SVN: r42793