Sam Rawlins
6a798e489e
Take this example, which includes no spreads:
```dart
f() {
return {
'a',
'b': 'c',
};
}
```
This produces the AMBIGUOUS_SET_OR_MAP_LITERAL_BOTH diagnostic.
Bug: https://github.com/dart-lang/sdk/issues/45950
Change-Id: I272519c15591d835aa6d390523a730dbc4259448
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/199060
Reviewed-by: Kathy Walrath <kathyw@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Samuel Rawlins <srawlins@google.com>