ipa: Fix pritting of symtab_node type [PR122512]

ipa: Fix pritting of symtab_node type [PR122512]

The problem here r16-4747-g529c25ed6e0a06 changed
symtab_type to toplevel_type and then added 2 types
at the begining but didn't update symtab_type_names.
This obvious patch changes symtab_type_names to toplevel_type_names,
adds a _MAX type to toplevel_type and a comment about keeping them in sync.
Also adds an static assert to make sure if someone adds a toplevel_type
that toplevel_type_names get updated too.

Pushed as obvious after a build and test.

	PR ipa/122512
gcc/ChangeLog:

	* cgraph.h (enum toplevel_type): Add TOPLEVEL_MAX. Add comment
	about keeping toplevel_type_names in sync.
	* symtab.cc (symtab_type_names): Rename to ...
	(toplevel_type_names): Add new types and add an assert about
	the size.
	(symtab_node::get_symtab_type_string): Use toplevel_type_names
	instead of symtab_type_names.
	(symtab_node::dump_base): Likewise.

Signed-off-by: Andrew Pinski <andrew.pinski@oss.qualcomm.com>