Auto-imports not working for extension members

[DanTup]

Using a recent nightly (which uses NotImportedContributor), completing on firstOrNull from package:collection does not add the import statement:

Importing on something else (like calculate() from the default command line project) does insert the import statement.

[DanTup]

Seems to be failing to resolve. Completion:

{
	"data": {
		"file": "/Users/danny/Desktop/dart_samples/autoimportextension/lib/a.dart",
		"libraryUri": "package:collection/collection.dart"
	},
	"detail": "T?",
	"kind": 10,
	"label": "firstOrNull",
	"sortText": "9999497",
	"textEdit": {
		"newText": "firstOrNull",
		"range": {
			"end": {
				"character": 19,
				"line": 2
			},
			"start": {
				"character": 12,
				"line": 2
			}
		}
	}
}

Resolve response:

{
	"id": 10,
	"jsonrpc": "2.0",
	"error": {
		"code": -32602,
		"data": "firstOrNull",
		"message": "No such element: firstOrNull in package:collection/collection.dart"
	}
}

[DanTup]

Fixed by dart-lang/sdk@1c8bb85.