Bad handling of semi-colons

[Nsidorenco]

For examples like the following, removing the semi-colon will make the example parse.

let y = 'a'.ToString();

do ()

The presence of ';' prevents the scanner from inserting a dedent token required to close the declaration expression.

Expected result:

let y = 'a'.ToString();

do ()

should parse the same as:

let y = 'a'.ToString()

do ()