Add constructor test

Add constructor test

Constructor has side effects mutating the parameters and checking
whether the mutated values are remembered in the constructor body.
Committed: https://code.google.com/p/dart/source/detail?r=20638

[gbracha, 2013-03-28 17:40:42]

lgtm

[Ivan Posva, 2013-03-28 17:46:27]

https://codereview.chromium.org/13181004/diff/1/tests/language/constructor_in...
File tests/language/constructor_initializer_test.dart (right):

https://codereview.chromium.org/13181004/diff/1/tests/language/constructor_in...
tests/language/constructor_initializer_test.dart:29: var o = new B(3, 5);
Please make sure that calling A on its own also gets the appropriate side
effects.

[hausner, 2013-03-28 20:06:47]

https://codereview.chromium.org/13181004/diff/1/tests/language/constructor_in...
File tests/language/constructor_initializer_test.dart (right):

https://codereview.chromium.org/13181004/diff/1/tests/language/constructor_in...
tests/language/constructor_initializer_test.dart:29: var o = new B(3, 5);
On 2013/03/28 17:46:27, Ivan Posva wrote:
> Please make sure that calling A on its own also gets the appropriate side
> effects.

Done.

[hausner, 2013-03-28 20:07:01]

Committed patchset #2 manually as r20638 (presubmit successful).