Support for method call syntax in call expressions

[ad-chaos]

Currently doing something like

call GetThing()->takething()

is broken, it generates the following syntax tree

call_statement [0, 0] - [0, 15]
  call_expression [0, 5] - [0, 15]
    function: identifier [0, 5] - [0, 13]
ERROR [0, 15] - [0, 28]
  keyword [0, 17] - [0, 26]

I tried fixing it by defining call_expression as the following:

call_expression: ($) =>
  prec(
    PREC.CALL,
    sep1(
      seq(
        field("function", $._expression),
        "(",
        commaSep($._expression),
        ")"
      ),
     "->"
    )
  ),

But that seems to only recognises two calls like call foo()->bar() and not the ones after it in call foo()->bar()->baz()
->baz() shows up as an ERROR node.

[clason]

Should be fixed by #125.

[ad-chaos]

Ah, I must've missed it