Dartc not propagating function params in calls made in a named constructor initializer

[pq]

class Foo {
  Foo.a(void func(var elm)){
    func("blah");
  }
  Foo.b(): this.a((str){
    print(str);
  });
}

main() {
  new Foo.b();
}

prints "null" instead of "blah"

I'm seeing this in the latest dartc in the editor as well as on dartboard (http://try.dartlang.org/s/23oh).

[DartBot]

This comment was originally written by drfibonacci@google.com

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Added Triaged label.

[DartBot]

This comment was originally written by zundel@google.com

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codegen issue:

I added some debugging to the generated JS:

function unnamed746062$Foo$Dart$b$c0$function$22_1_2$HoistedConstructor$named($n, $o, str){
  if ($o.count || $n != 1)
    $nsme();
  print$getter()(1, $noargs, "in hoistedconstructor$named: str is "+str); // str prints out 'blah'
  return unnamed746062$Foo$Dart$b$c0$function$22_1_2$HoistedConstructor.call(this, str);
}

SO 'blah' is intact above, but, in the hoisted constructor, note how the two arguments have the same name:

function unnamed746062$Foo$Dart$b$c0$function$22_1_2$HoistedConstructor(str, str){
  print$getter()(1, $noargs, 'I am feeling very ' + $toString(str) + '');
}

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Set owner to zundel@google.com.

[DartBot]

This comment was originally written by zundel@google.com

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Up for review @­ http://codereview.chromium.org/8894004

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Added Started label.

[DartBot]

This comment was originally written by zundel@google.com

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r2315

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Added Fixed label.