tree 78542da4bd400a51445935a14e45a5933dac2548
parent f872c17a85c309df54a680e63c71c2a52ed496d1
author Jens Johansen <jensj@google.com> 1536156333 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1536156333 +0000

Better context message on SyntheticForwarder in MissingImplementation

Previously we could get something like this:
```
regress_32660_test_06.dart:9:7: Context: 'foo' is defined here.
class I extends G implements H {
      ^^^
```

because a SyntheticForwarder was added with a file location of the
class.

It now instead goes to the forwarding stub target and says
```
regress_32660_test_06.dart:6:3: Context: 'foo' is defined here.
  foo(int x, {int y}) => y;
  ^^^
```

Change-Id: I6fb1b958f58635c9afffa8e58cd49eb69df28afd
Reviewed-on: https://dart-review.googlesource.com/72680
Reviewed-by: Peter von der Ahé <ahe@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>