sending: 'x' (value = 2, line 20)
thing(2@20): 'x'(2@20)
sending: 'x' (value = 3, line 30)
-30: parse error, unexpected 'x', expecting ';'
+30: syntax error, unexpected 'x', expecting ';'
Freeing nterm thing (2@20)
Freeing nterm thing (1@10)
Freeing nterm thing (0@0)
sending: ';' (value = 11, line 110)
line(10@100): thing(10@100) ';'
sending: 'y' (value = 12, line 120)
-120: parse error, unexpected $undefined, expecting $end or 'x'
+120: syntax error, unexpected $undefined, expecting $end or 'x'
sending: EOF
Freeing nterm line (10@100)
Freeing nterm line (7@70)