Support lookups of TQMIC-referenced methods

[JonatanWaern]

Template-Qualified Method Implementation Calls allow users to specify which parent template methods to invoke in cases where template ordering is ambiguous in parents. This is currently unsupported in lookups at least

• Add parsing support for object.templates.name.method() (this should already be parsed correctly as a member expression)
• Add lookup support for object.templates.name (goto-template) and object.templates.name.method() (goto-method)
• Could also add lookup support for object.templates (goto-all-impld-templates)

[JonatanWaern]

Note: in DMLC this is implemented via an auto-param for 'templates', which is especially handled, this is where the current goto-def on .templates goes (which isn't incorrect, but not very helpful)