[Migrate] move_file.dart

Also removes an already migrated file from the list.

Change-Id: I76b88802b7867abe77867713166b048ee7b8cb0a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/402882
Commit-Queue: Brian Wilkerson <[email protected]>
Reviewed-by: Konstantin Shcheglov <[email protected]>

Author: bwilkerson

pkg/analysis_server/analyzer_use_new_elements.txt

@@ -5,13 +5,11 @@ lib/src/handler/legacy/edit_get_available_refactorings.dart
 lib/src/handler/legacy/search_find_element_references.dart
 lib/src/lsp/handlers/handler_completion.dart
 lib/src/lsp/handlers/handler_completion_resolve.dart
-lib/src/lsp/handlers/handler_references.dart
 lib/src/lsp/handlers/handler_rename.dart
 lib/src/protocol_server.dart
 lib/src/services/correction/namespace.dart
 lib/src/services/kythe/kythe_visitors.dart
 lib/src/services/refactoring/legacy/extract_method.dart
-lib/src/services/refactoring/legacy/move_file.dart
 lib/src/services/refactoring/legacy/refactoring.dart
 lib/src/services/refactoring/legacy/refactoring_manager.dart
 lib/src/services/refactoring/legacy/rename.dart

pkg/analysis_server/lib/src/services/refactoring/legacy/move_file.dart

@@ -16,7 +16,6 @@ import 'package:analyzer/source/source_range.dart';
 import 'package:analyzer/src/dart/analysis/driver.dart';
 import 'package:analyzer/src/dart/analysis/search.dart';
 import 'package:analyzer/src/dart/ast/ast.dart';
-import 'package:analyzer/src/utilities/extensions/element.dart';
 import 'package:analyzer_plugin/utilities/change_builder/change_builder_core.dart';
 import 'package:analyzer_plugin/utilities/range_factory.dart';
 import 'package:path/path.dart' as path show posix, Context;
@@ -204,8 +203,8 @@ class MoveFileRefactoringImpl extends RefactoringImpl
       return;
     }
 
-    var element = resolvedUnit.unit.declaredElement;
-    if (element == null) {
+    var libraryFragment = resolvedUnit.unit.declaredFragment;
+    if (libraryFragment == null) {
       return;
     }
 
@@ -224,12 +223,12 @@ class MoveFileRefactoringImpl extends RefactoringImpl
       ));
     }
 
-    var libraryElement = element.library;
+    var libraryElement = libraryFragment.element;
 
     // If this element is a library, handle inbound 'part of' directives which
     // are not included in `searchEngine.searchReferences` below.
-    if (element == libraryElement.definingCompilationUnit) {
-      var libraryResult = await _session.getResolvedLibraryByElement(
+    if (libraryFragment == libraryElement.firstFragment) {
+      var libraryResult = await _session.getResolvedLibraryByElement2(
         libraryElement,
       );
       if (libraryResult is! ResolvedLibraryResult) {
@@ -247,7 +246,7 @@ class MoveFileRefactoringImpl extends RefactoringImpl
             for (var uriString in partOfs) {
               recordReference(
                 range: range.node(uriString),
-                sourceFile: result.unit.declaredElement!.source.fullName,
+                sourceFile: result.unit.declaredFragment!.source.fullName,
                 targetFile: oldPath,
                 quotedUriValue: uriString.literal.lexeme,
               );
@@ -271,7 +270,7 @@ class MoveFileRefactoringImpl extends RefactoringImpl
           if (uriValue == null) continue;
           recordReference(
             range: range.node(uriString),
-            sourceFile: element.source.fullName,
+            sourceFile: libraryFragment.source.fullName,
             targetFile: pathContext.normalize(
               pathContext.join(oldDir, _uriToPath(uriValue)),
             ),
@@ -283,7 +282,7 @@ class MoveFileRefactoringImpl extends RefactoringImpl
 
     // Finally, locate all other incoming references to this file.
     var references = await refactoringWorkspace.searchEngine
-        .searchLibraryFragmentReferences(element.asElement2);
+        .searchLibraryFragmentReferences(libraryFragment);
     for (var reference in references) {
       recordReference(
         range: reference.range,