dart2js does not produce a warning when trying to call an inaccessible method

[DartBot]

This issue was originally filed by [email protected]

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What steps will reproduce the problem?
There is a library:

library('lib');

class C {
  _method() {}
}

Run the following test with dart2js:

import('lib.dart');

class D extends C {
  test() {
    super._method(); //should be a static warning
  }
}

main() {
  C c;
  c._method(); //should be a static warning
}

What is the expected output? What do you see instead?
Expected: static warnings on the marked lines.
Actual: no static warnings

What version of the product are you using? On what operating system?
dart2js, r8026. OS Ubuntu 10.04

Please provide any additional information below.
Tests in co19:
Language/10_Expressions/14_Method_Invocation/1_Ordinary_Invocation_A06_t02.dart
Language/10_Expressions/14_Method_Invocation/1_Super_Invocation_A06_t02.dart

[kasperl]

Added Area-Dart2JS, Triaged labels.

[kasperl]

Added this to the Later milestone.

[kasperl]

Removed this from the Later milestone.

[kasperl]

Added this to the M2 milestone.

[peter-ahe-google]

Removed Priority-Medium label.
Added Priority-Low label.

[peter-ahe-google]

Removed this from the M2 milestone.
Added this to the Later milestone.
Removed Priority-Low label.
Added Priority-Medium label.

[kasperl]

Added TriageForM5 label.

[kasperl]

The first part of the issue (the super call) has been fixed, but we still don't issue static warnings when invoking unaccessible private methods from other libraries.

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cc @johnniwinther.
Removed this from the Later milestone.
Added this to the M5 milestone.
Removed TriageForM5 label.

[johnniwinther]

Set owner to @johnniwinther.
Added Started label.

[johnniwinther]

Fixed by https://codereview.chromium.org/15781008/

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Added Fixed label.