Dartc allows function bodies to methods of an interface

[DartBot]

This issue was originally filed by ms...@unipro.ru

---

What steps will reproduce the problem?
Run this test in dartc
interface I {
  int m1() {return null;}
}

class A implements I{
  int m1() {}
}

main() {
  A a = new A();
}

What is the expected output? What do you see instead?
Expected: compile-time error
Actual: test is executed without errors

What version of the product are you using? On what operating system?
dartc r2810, Ubuntu 10.04

Please provide any additional information below.

[DartBot]

This comment was originally written by ms...@unipro.ru

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The same with an interface constructor:
interface I default F {
  I() {}
}

class F implements I {
  F() { }
  factory I() {return new F();}
}

main() {
  new I();
}

[dgrove]

Added Area-Compiler, Triaged labels.

[scheglov]

Added Started label.

[scheglov]

http://codereview.chromium.org/9086015/

[scheglov]

Set owner to @scheglov.

[scheglov]

Added Fixed label.