re PR c++/27819 (ICE casting static const variables)

	PR c++/27819
	* decl.c (cp_finish_decl): Process initializers for static data
	members with non-dependent initializers, even in templates.
	PR c++/27722
	* decl.c (maybe_deduce_size_from_array_init): If the declaration
	is erroneous, give it an erroneous type.
	(layout_var_decl): If the type is erroneous, give up.
	(check_initializer): Likewise.
	PR c++/27807
	* cp-tree.h (TYPE_OBJ_P): New macro.
	(TYPE_PTROB_P): Use it.
	(TYPE_REF_OBJ_P): Likewise.
	* semantics.c (finish_compound_literal): Do not permit compound
	literals of non-object types.
	PR c++/27806
	* typeck.c (original_type): Robustify.
	PR c++/27819
	* g++.dg/template/static25.C: New test.
	PR c++/27722
	* g++.dg/init/array21.C: New test.
	PR c++/27807
	* g++.dg/ext/complit7.C: New test.
	
	PR c++/27806
	* g++.dg/parse/ptrmem5.C: New test.

From-SVN: r114382