Prevent C++ Mode wrongly fontifying some identifiers near templates as types

Prevent C++ Mode wrongly fontifying some identifiers near templates as types

This fixes debbugs #7917.

* lisp/progmodes/cc-engine.el (c-forward-keyword-prefixed-id): Accept 'maybe
(from c-forward-type) as sufficient to record an id.  Record type id as well
as ref ids.
(c-forward-name): Bind c-last-identifier-range around the call to
c-forward-<>-arglist to prevent it getting corrupted.  Don't automatically
assume an identifier is a type when a template ">" is followed by a "(".
(c-forward-type): Don't automatically assume an identifier is a type when a
template ">" is followed by a "(".

* lisp/progmodes/cc-fonts.el (c-font-lock-<>-arglists): Don't fontify an
identifier as a type when its associated ">" is followed by a "(".