[element model] migrate exit_detector

Change-Id: I6bb2121b5166012f6b68652ede3703933be9c6ea
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/399841
Commit-Queue: Phil Quitslund <[email protected]>
Reviewed-by: Brian Wilkerson <[email protected]>

Author: pq

pkg/analyzer/analyzer_use_new_elements.txt

@@ -68,7 +68,6 @@ lib/src/dart/resolver/binary_expression_resolver.dart
 lib/src/dart/resolver/body_inference_context.dart
 lib/src/dart/resolver/comment_reference_resolver.dart
 lib/src/dart/resolver/constructor_reference_resolver.dart
-lib/src/dart/resolver/exit_detector.dart
 lib/src/dart/resolver/extension_member_resolver.dart
 lib/src/dart/resolver/flow_analysis_visitor.dart
 lib/src/dart/resolver/for_resolver.dart

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

@@ -5,7 +5,7 @@
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
-import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/dart/element/element2.dart';
 import 'package:analyzer/src/dart/element/type.dart';
 
 /// Instances of the class `ExitDetector` determine whether the visited AST node
@@ -436,7 +436,7 @@ class ExitDetector extends GeneralizingAstVisitor<bool> {
         return false;
       }
     }
-    var element = node.methodName.staticElement;
+    var element = node.methodName.element;
     if (_elementExits(element)) {
       return true;
     }
@@ -696,10 +696,10 @@ class ExitDetector extends GeneralizingAstVisitor<bool> {
     return ExitDetector()._nodeExits(node);
   }
 
-  static bool _elementExits(Element? element) {
-    if (element is ExecutableElement) {
-      var declaration = element.declaration;
-      return declaration.hasAlwaysThrows ||
+  static bool _elementExits(Element2? element) {
+    if (element is ExecutableElement2) {
+      var declaration = element.baseElement;
+      return declaration.metadata2.hasAlwaysThrows ||
           identical(declaration.returnType, NeverTypeImpl.instance);
     }