`new F().x` is parsed as `new (F().x)` instead of `(new F()).x`

[relrelb]

Version: 0.3.6

When compiling the following code with Rascal and running:

function F() {
    trace("F called, this is " + (this == _root ? "_root" : "new object"));
    this.prop = "prop";
}
F.prototype.proto = "proto";

trace(new F().proto);      // "undefined", expected "proto"
trace((new F()).proto);    // "proto", as expected
trace(new F().prop);        // "underfined", expected "prop"
trace(new F()["proto"]);   // "undefined", expected "proto"