Migrated test block 29 to Dart 2.0

Migrated test block 29 to Dart 2.0

-Spit string_test into string_test and string_static_test
-Added various MissingCompileTimeError entries in status files for
tests which throw exceptions on configurations that haven't implemented Dart 2.0
-Switched var -> dynamic in symbol_operator_test

BUG=
R=jcollins@google.com, rnystrom@google.com

Committed: https://github.com/dart-lang/sdk/commit/3867d84ca5aa1dc3c7019de65f9f37c6a3ab5bfc

[bkonyi, 2017-07-21 13:21:42]

bkonyi@google.com changed reviewers:
+ jcollins@google.com, rnystrom@google.com

[jcollins, 2017-07-21 19:01:17]

LGTM

Recommend trying the additional command lines for --checked, --strong etc I just
added to the doc to make sure you don't break the bots, if you haven't already.

[Bob Nystrom, 2017-07-21 22:03:26]

https://codereview.chromium.org/2983253002/diff/20001/tests/corelib_2/string_...
File tests/corelib_2/string_static_test.dart (right):

https://codereview.chromium.org/2983253002/diff/20001/tests/corelib_2/string_...
tests/corelib_2/string_static_test.dart:13: var c = a[2.2];
/*@compile-error=unspecified*/
I would move the comment to here:

var c = a[/*@compile-error=unspecified*/2.2];

Eventually, we'd like to use these in the test runner to precisely validate
where the error is reported, and I think that's where it would show up.

[Bob Nystrom, 2017-07-21 22:03:30]

lgtm

[bkonyi, 2017-07-23 03:16:49]

Description was changed from

==========
Migrated test block 29 to Dart 2.0

-Spit string_test into string_test and string_static_test
-Added various MissingCompileTimeError entries in status files for
tests which throw exceptions on configurations that haven't implemented Dart 2.0
-Switched var -> dynamic in symbol_operator_test

BUG=
==========

to

==========
Migrated test block 29 to Dart 2.0

-Spit string_test into string_test and string_static_test
-Added various MissingCompileTimeError entries in status files for
tests which throw exceptions on configurations that haven't implemented Dart 2.0
-Switched var -> dynamic in symbol_operator_test

BUG=
R=jcollins@google.com, rnystrom@google.com

Committed:
https://github.com/dart-lang/sdk/commit/3867d84ca5aa1dc3c7019de65f9f37c6a3ab5bfc
==========

[bkonyi, 2017-07-23 03:16:50]

Committed patchset #2 (id:20001) manually as
3867d84ca5aa1dc3c7019de65f9f37c6a3ab5bfc.