Improve error messages from malformed Nasal hashes ( flightgear#3222 )

flightgear#3222 (closed)

Minimal reproducible example here:

var foo = {
    a: func() {},
    var bar = func() {},
#   ^^^ parseBlock does needsSemi here, and add newToken(p, TOK_SEMI)
#       newToken(p, TOK_SEMI) will create a new token with line = -1
    c: func() {},
};

The parser thinks here should be ;, so generats a new TOK_SEMI token, but the line of this token must be -1, so the solution is synchronize line with token t.

Maybe this is not the best solution, if anyone could help i would be very grateful.

And as james wrote in the email, unit test is needed for the fix patch, but i do not know where to write this, hope anyone could help me.