* init.c (resolve_offset_ref): Handle default-initialization.
* except.c (build_throw): Handle throwing NULL.
* typeck.c (build_x_function_call): Use resolve_offset_ref.
* search.c (compute_access): Only strip an anonymous union
for a FIELD_DECL.
* call.c (add_builtin_candidates): Tweak.
* cvt.c (build_expr_type_conversion): Restore code for conversion
from class types.
* decl2.c (delete_sanity): Use it. Clean up.
* typeck.c (comp_ptr_ttypes_real): Fix cv-qual comparisons.
* typeck.c (c_expand_return): Don't warn about void expressions on
return statements in functions returning void.