[element model] migrate literal_element_verifier

Change-Id: I86ca693e8f781d5e2affd204aa7a6ec2fbe09f4b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/399842
Reviewed-by: Brian Wilkerson <[email protected]>
Commit-Queue: Phil Quitslund <[email protected]>

Author: pq

pkg/analyzer/analyzer_use_new_elements.txt

@@ -103,7 +103,6 @@ lib/src/error/deprecated_member_use_verifier.dart
 lib/src/error/duplicate_definition_verifier.dart
 lib/src/error/imports_verifier.dart
 lib/src/error/inheritance_override.dart
-lib/src/error/literal_element_verifier.dart
 lib/src/error/override_verifier.dart
 lib/src/error/required_parameters_verifier.dart
 lib/src/error/unused_local_elements_verifier.dart

pkg/analyzer/lib/src/error/literal_element_verifier.dart

@@ -200,8 +200,8 @@ class LiteralElementVerifier {
       return;
     }
 
-    var iterableType = expressionType.asInstanceOf(
-      typeProvider.iterableElement,
+    var iterableType = expressionType.asInstanceOf2(
+      typeProvider.iterableElement2,
     );
 
     if (iterableType == null) {
@@ -291,8 +291,8 @@ class LiteralElementVerifier {
       return;
     }
 
-    var mapType = expressionType.asInstanceOf(
-      typeProvider.mapElement,
+    var mapType = expressionType.asInstanceOf2(
+      typeProvider.mapElement2,
     );
 
     if (mapType == null) {