This was removed in b3c0db218d
(along with two unrelated changes).
Removing this hack introduced issue #742, whereby INCLUDing
a file without a trailing newline can cause a syntax error.
A more proper fix would involve Bison's tracking locations,
but for now the EOF-newline hack fixes the issue while only
affecting some reported errors (expecting "newline"
instead of "end of file").
Fixes#742
In preparation for an upcoming change
Makes for nicer error messages, complaining about EOF instead of newlines
The hack had to be kept for the lexer raw mode to avoid a bug;
see the relevant code comment for more info.
