dynamic calls on some operators seems broken?

[vsmenon]

The following Dart:

bool inRange(min, value, max) => (min <= value) && (value <= max);

void main() {
  var result = inRange(2, 7, 10);
  print(result);
}

generates this:

  test.inRange = function(min, value, max) {
    return dart.as(dart.dsend(min, '<=', value), core.bool)['&&'](dart.as(dart.dsend(value, '<=', max), core.bool));
  };

  test.main = function() {
    let result = setteronly.inRange(2, 7, 10);
    core.print(result);
  };

which, at runtime, triggers:

Uncaught TypeError: dart.as(...).&& is not a function

It's fine if inRange parameters are typed.

[rakudrama]

The problem appears to be that the static type on parenthesized expressions is not updated by inserting reified coercions.
We can either make reify_coercions.dart adjust the static type on parentheses (or look through parentheses when querying the type - I prefer adjusting the tree to be correct).

We should also make boolean conversions explicit and lighter weight. e.g. rather than relying on

  if (dart.notNull(dart.as(x, core.bool))) ...

have something like

if (dart.test(x)) ...

[jmesserly]

I prefer adjusting the tree to be correct

+1! :)

[rakudrama]

Fixed by 961542e
Boolean conversion issue moved to #536