[element model] migrate yield_statement_resolver

Change-Id: I95d94420e978655970625936fb26e17b282067e6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/399961
Auto-Submit: Phil Quitslund <[email protected]>
Commit-Queue: Brian Wilkerson <[email protected]>
Reviewed-by: Brian Wilkerson <[email protected]>

Author: pq

pkg/analyzer/analyzer_use_new_elements.txt

@@ -93,7 +93,6 @@ lib/src/dart/resolver/this_lookup.dart
 lib/src/dart/resolver/type_property_resolver.dart
 lib/src/dart/resolver/typed_literal_resolver.dart
 lib/src/dart/resolver/variable_declaration_resolver.dart
-lib/src/dart/resolver/yield_statement_resolver.dart
 lib/src/diagnostic/diagnostic_factory.dart
 lib/src/error/best_practices_verifier.dart
 lib/src/error/correct_override.dart

pkg/analyzer/lib/src/dart/resolver/yield_statement_resolver.dart

@@ -100,10 +100,10 @@ class YieldStatementResolver {
           return;
         }
       } else {
-        var imposedSequenceType = imposedReturnType.asInstanceOf(
+        var imposedSequenceType = imposedReturnType.asInstanceOf2(
           bodyContext.isSynchronous
-              ? _typeProvider.iterableElement
-              : _typeProvider.streamElement,
+              ? _typeProvider.iterableElement2
+              : _typeProvider.streamElement2,
         );
         if (imposedSequenceType != null) {
           var imposedValueType = imposedSequenceType.typeArguments[0];