dart2js should implement show: and hide: combinators

[gbracha]

Per spec, section 12.2

Language issue #817

[kasperl]

Set owner to @johnniwinther.
Added this to the M1 milestone.

[kasperl]

Fixed in r13534.

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Added Fixed label.

[efortuna]

This still needs a little work. Try running it in firefox on Windows. It fails. :-(

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Added Triaged label.

[efortuna]

This still needs a little work. Try running it in firefox on Windows. It fails. :-(

[kasperl]

The log file that shows the error is here:

http://build.chromium.org/p/client.dart/builders/dart2js-ff-win7/builds/363/steps/dart2js%20tests/logs/stdio

It says:

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@@@STEP_CLEAR@@@
@@@STEP_TEXT@ 55% +489 -0 @­@@

1. build\ReleaseIA32\dart-sdk\bin\dart2js.bat --out=e:/b/build/slave/dart2js-ff-win7/build/dart/build/ReleaseIA32/generated_tests/dart2js-ff/tests_language_import_core_no_prefix_test/test.js e:/b/build/slave/dart2js-ff-win7/build/dart/build/ReleaseIA32/generated_tests/dart2js-ff/tests_language_import_core_no_prefix_test/test.dart
2. python e:\b\build\slave\dart2js-ff-win7\build\dart\tools\testing\run_selenium.py --browser=ff --timeout=478 --out=e:/b/build/slave/dart2js-ff-win7/build/dart/build/ReleaseIA32/generated_tests/dart2js-ff/tests_language_import_core_no_prefix_test/test.html
   language/import_combinators_test
   test.dart: Compilation failed (step 1 of 2), exit code 1

pkg/unittest/html_config.dart:8:10: Warning: duplicated library name "'unittest'".
#library('unittest');
         ^^^^^^^^^^
pkg/unittest/unittest.dart:137:10: Warning: duplicated library name "'unittest'".
#library('unittest');
         ^^^^^^^^^^
tests/language/import_combinators_test.dart:7:1: library tags not allowed here
import "import1_lib.dart" show hide, show hide ugly;
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error: Compilation failed.

FAILED: dart2js-ff release_ia32 language/import_combinators_test
Expected: pass
Actual: fail
Unexpected compile-time error.

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Added Started label.

[peter-ahe-google]

This problem is fixed. Wrapping tests is what is broken. See issue #2264.

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Added Fixed label.