Hmm, they don't seem to be. If I run "?reserved", the list of reserved words that I get is:
- if
- else
- repeat
- while
- function
- for
- in
- next
- break
- TRUE
- FALSE
- NULL
- Inf
- NaN
- NA
- NA_integer_
- NA_real_
- NA_complex_
- NA_character_
Perhaps there is a different/longer list of reserved words?
Meanwhile, I'm seeing all of these functions showing up highlighted blue: