start-sanitize-gdbtk

start-sanitize-gdbtk
	* gdbtk.c (gdb_get_breakpoint_info):  Add string for new
	enumeration del_at_next_stop to bpdisp array.

end-sanitize-gdbtk
	* eval.c (evaluate_subexp_for_sizeof):  Handle dereferencing
	of non-pointer values.

	* symtab.c (gdb_mangle_name):  Improve mangling of nested types,
	their physical names already include the class name.

	* valops.c (value_cast):  Handle upcast of a class pointer.

	From Andreas Schwab (schwab@issan.informatik.uni-dortmund.de):
	* corelow.c (get_core_registers):  Make secname big enough.