-Clearly the `TK_newline` token can start with a NEWLINE. Any symbol
-which is the head of a production that contains a starts-with-NEWLINE
-symbol preceeded only by nullable symbols is also a
-starts-with-NEWLINE symbol. We use a new field `can_eol` to record
-this attribute of symbols, and compute it in a repetitive manner
-similar to `set_nullable`.
-
-Once we have that, we can determine which symbols are `line_like` by
-seeing which are followed by a `can_eol` symbol in any production.
+Clearly the `TK_newline` token can derive a NEWLINE. Any symbol which
+is the head of a production that contains a line_like symbol is also a
+line-like symbol. We use a new field `line_like` to record this
+attribute of symbols, and compute it in a repetitive manner similar to
+`set_nullable`.