// Lexer errors: one per line; each line after the error is skipped.
a = 1 & 2
abcdefghijklmnopq = 1
n = 65536
n = $10000
n = %11111111111111111
n = $
n = $g1
n = 12ab
n = %102
s = "open
s = "bad \q escape"
s = "no \' here"
c = ''
c = 'ab'
c = 'a
c = '\"'
c = '\q'
_x = 1
x = 1 ; y = 2
ok = $1F + %11 // lexing resumes on the next line