re PR c++/4629 (non-constant `sizeof (void*)' cannot be used as template argument)
* dump.c (dump_op): New function.
(cp_dump_tree): Dump CLASSTYPE_TEMPLATE_SPECIALIZATION. Use
dump_op. Dump DECL_MUTABLE, access and staticness for VAR_DECLs.
DECL_PURE_VIRTUAL_P, DECL_VIRTUAL_P,
PR4629
* semantics.c (finish_sizeof): Make sure that expression created
while processing a template do not have a type.
(finish_alignof): Likewise.
* typeck.c (c_sizeof): Likewise.
(expr_sizeof): Likewise.