It would incorrectly put the primary constructor parameter list before
the type's type parameter list, like:
```dart
// Before:
class C<T> {
C();
}
// After:
class C()<T> {
}
```
This fixes it to follow the type parameter list if there is one.
Change-Id: Ib49c7df7923e9feed11f87579fefc8300c56c4a6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/506760
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Robert Nystrom
2cd3ec552c