Elements. Migrate SuperConstructorResolver.

Change-Id: Ifd6d712f10b0d97a20e92a0be2d411111aca2852
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/410562
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Phil Quitslund <pquitslund@google.com>

pkg/analyzer/lib/src/dart/element/element.dart

@@ -1718,6 +1718,10 @@ class ConstructorElementImpl2 extends ExecutableElementImpl2
       (firstFragment.superConstructor?.declaration as ConstructorElementImpl?)
           ?.element;
 
+  set superConstructor2(ConstructorElement2? value) {
+    firstFragment.superConstructor = value?.asElement;
+  }
+
   @override
   T? accept2<T>(ElementVisitor2<T> visitor) {
     return visitor.visitConstructorElement(this);

pkg/analyzer/lib/src/summary2/link.dart

@@ -12,7 +12,6 @@ import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/dart/element/element2.dart';
 import 'package:analyzer/src/context/context.dart';
 import 'package:analyzer/src/dart/analysis/file_state.dart';
-import 'package:analyzer/src/dart/element/element.dart';
 import 'package:analyzer/src/dart/element/inheritance_manager3.dart';
 import 'package:analyzer/src/dart/element/name_union.dart';
 import 'package:analyzer/src/summary2/bundle_writer.dart';
@@ -52,7 +51,7 @@ class Linker {
   /// Libraries that are being linked.
   final Map<Uri, LibraryBuilder> builders = {};
 
-  final Map<ElementImpl, ast.AstNode> elementNodes = Map.identity();
+  final Map<Object, ast.AstNode> elementNodes = Map.identity();
 
   late InheritanceManager3 inheritance; // TODO(scheglov): cache it
 
@@ -87,6 +86,12 @@ class Linker {
     return elementNodes[element.asElement];
   }
 
+  /// If the [fragment] is part of a library being linked, return the node
+  /// from which it was created.
+  ast.AstNode? getLinkingNode3(Fragment fragment) {
+    return elementNodes[fragment];
+  }
+
   void link({
     required OperationPerformanceImpl performance,
     required List<LibraryFileKind> inputLibraries,

pkg/analyzer/lib/src/summary2/super_constructor_resolver.dart

@@ -2,10 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// ignore_for_file: analyzer_use_new_elements
-
 import 'package:analyzer/dart/ast/ast.dart';
-import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/dart/element/element.dart';
 import 'package:analyzer/src/summary2/link.dart';
 
@@ -18,19 +15,18 @@ class SuperConstructorResolver {
 
   void perform() {
     for (var builder in _linker.builders.values) {
-      for (var unitElement in builder.element.units) {
-        for (var classElement in unitElement.classes) {
-          for (var constructorElement in classElement.constructors) {
-            _constructor(classElement, constructorElement);
-          }
+      for (var classElement in builder.element.classes) {
+        for (var constructorElement in classElement.constructors2) {
+          _constructor(classElement, constructorElement);
         }
       }
     }
   }
 
-  void _constructor(ClassElement classElement, ConstructorElement element) {
-    element as ConstructorElementImpl;
-
+  void _constructor(
+    ClassElementImpl2 classElement,
+    ConstructorElementImpl2 element,
+  ) {
     // Constructors of mixin applications are already configured.
     if (classElement.isMixinApplication) {
       return;
@@ -42,24 +38,26 @@ class SuperConstructorResolver {
     }
 
     var invokesDefaultSuperConstructor = true;
-    var node = _linker.getLinkingNode(element);
-    if (node is ConstructorDeclaration) {
-      for (var initializer in node.initializers) {
-        if (initializer is RedirectingConstructorInvocation) {
-          invokesDefaultSuperConstructor = false;
-        } else if (initializer is SuperConstructorInvocation) {
-          invokesDefaultSuperConstructor = false;
-          var name = initializer.constructorName?.name ?? '';
-          element.superConstructor = classElement.supertype?.constructors
-              .where((element) => element.name == name)
-              .firstOrNull;
+    for (var fragment in element.fragments) {
+      var node = _linker.getLinkingNode3(fragment);
+      if (node is ConstructorDeclaration) {
+        for (var initializer in node.initializers) {
+          if (initializer is RedirectingConstructorInvocation) {
+            invokesDefaultSuperConstructor = false;
+          } else if (initializer is SuperConstructorInvocation) {
+            invokesDefaultSuperConstructor = false;
+            var name = initializer.constructorName?.name ?? 'new';
+            element.superConstructor2 = classElement.supertype?.constructors2
+                .where((element) => element.name3 == name)
+                .firstOrNull;
+          }
         }
       }
     }
 
     if (invokesDefaultSuperConstructor) {
-      element.superConstructor = classElement.supertype?.constructors
-          .where((element) => element.name.isEmpty)
+      element.superConstructor2 = classElement.supertype?.constructors2
+          .where((element) => element.name3 == 'new')
           .firstOrNull;
     }
   }