[patch] Fix PR39922 and PR39927

[Paolo Bonzini]

> +    = promote_mode (type, DECL_MODE (decl), &unsignedp,
> +		    (TREE_CODE (decl) == RESULT_DECL
> +		     || TREE_CODE (decl) == PARM_DECL) ? 1 : 0);

This for the record would be fixed by
http://gcc.gnu.org/ml/gcc-patches/2009-04/msg01631.html as well.

Paolo