Comment template functions should accept optional comment ID argument.

[filosofo]

Otherwise, to get basic comment info you have to define, populate, and reset afterwards a global $comment variable, which is unnecessarily messy.

Patch adds a comment ID variable where helpful and backwards-compatibility safe.

[ryan]

Since get_comment() returns the global comment if passed on empty ID, can we lose the empty() ternaries?

[filosofo]

Replying to ryan:

Since get_comment() returns the global comment if passed on empty ID, can we lose the empty() ternaries?

Absolutely. Second patch drops ternaries.

[ryan]

[12821]