Added missing tif.get_type_name() on struct/enum change

[themaks]

This fixes a problem in hooks.local_types_changed.

libbs/libbs/decompilers/ida/hooks.py

Lines 169 to 184 in e25ae7e

	is_typedef, name, type_name = compat.typedef_info(tif, use_new_check=True)
	new_type_type = None
	if is_typedef:
	self.interface.typedef_changed(Typedef(name=name, type_=type_name))
	new_type_type = Typedef
	elif tif.is_struct():
	bs_struct = compat.bs_struct_from_tif(tif)
	self.interface.struct_changed(bs_struct)
	new_type_type = Struct
	elif tif.is_enum():
	bs_enum = compat.enum_from_tif(tif)
	self.interface.enum_changed(bs_enum)
	new_type_type = Enum
	self.interface.cached_ord_to_type_names[ordinal] = (name, new_type_type)
	return 0

When a struct or enum is modified, compat.typedef_info returns (False, None, None), so name is set to None.
Later, the type cache is updated using name=None (self.interface.cached_ord_to_type_names[ordinal] = (name, new_type_type)), causing major errors later on in the same function:

libbs/libbs/decompilers/ida/hooks.py

Lines 159 to 163 in e25ae7e

	# was the type renamed?
	if ordinal in self.interface.cached_ord_to_type_names:
	old_name, _ = self.interface.cached_ord_to_type_names[ordinal]
	if old_name != name:
	self.bs_type_deleted(ordinal)