Dan Zheng cef43e8e31 [AutoDiff] Minor parser fix for @derivative and @transpose. ...

Diagnose `@derivative` and `@transpose` attributes that are missing the
required comma before the `wrt:` clause:

```
@derivative(of: foo wrt: x)
@transpose(of: bar wrt: (x, y))
```

Previously, this was undiagnosed.

Resolves TF-1168.

2020-02-20 21:06:58 -08:00

2.9 KiB

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