swift234

[ASTPrinter] Fix printing of nested typealias types and make it consistent with printing of nominal types.

This fixes several issues:
- By default parent types of alias types are not printed which results in
	- Erroneous fixits, for example when casting to 'Notification.Name' from a string, which ends up adding erroneous cast
	  as "Name(rawValue: ...)"
	- Hard to understand types in code-completion results and diagnostics
- When printing with 'fully-qualified' option typealias types are printed erroneously like this "<PARENT>.Type.<TYPEALIAS>"

The change make typealias printing same as nominal types and addresses the above.