Constructor initialiser list: the compiler doesn't fail when the initialisation list contain many initialisation fot he same instance variable

[DartBot]

This issue was originally filed by [email protected]

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Tested on Dartboard and dart vm on macos lion and I receive the same result

I was playing with the object creation in dart. In the version 0.05 of
the language spec I came across to the frase:

"It is a compile time error if more than one initializer corresponding
to a given instance variable appears in k's initializer list"

this is the code I try to run: (http://try.dartlang.org/s/lWMg)

class Test {
  int _x, _y;
  Test():this._x=0, this._x=1, this._x=2 {}
  dump() {
    print('x: ${_x} y: ${_y}');
  }
}

main () {
var x = new Test();
x.dump();
}

From my understanding this should throw an exception as i try to
initialise few times the same instance variable.

and probably this statement doesn't work as well:
"It is a compile-time error if k's initializer list con-
tains an initializer for a variable that is initialized by means of an initializing
formal of k"

http://try.dartlang.org/s/QL4g

[DartBot]

This comment was originally written by [email protected]

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Added Area-VM, Triaged labels.

[ghost]

Set owner to @mhausner.

[iposva-google]

Added Accepted label.

[DartBot]

This comment was originally written by @mhausner

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This has been fixed a long time ago. When executing the above code, the compiler reports the expected error:

Error: line 4 pos 21: duplicate initialization for field _x@0x1024d784
  Test():this._x=0, this._x=1, this._x=2 {}
                    ^

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Added Fixed label.