Part. Deprecate LibraryElement.scope

Change-Id: I85a24d0f1d0b4251415644fe1438503e41710436
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/388682
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>

pkg/analysis_server/lib/src/computer/import_elements_computer.dart

@@ -325,7 +325,7 @@ class ImportElementsComputer {
   }
 
   bool _hasElement(String prefix, String name) {
-    var scope = libraryResult.libraryElement.scope;
+    var scope = libraryResult.libraryElement.definingCompilationUnit.scope;
 
     if (prefix.isNotEmpty) {
       var prefixElement = scope.lookup(prefix).getter;

pkg/analyzer/CHANGELOG.md

@@ -12,6 +12,8 @@
   use `CompilationUnitElement.libraryImportPrefixes` instead.
 * Deprecated `LibraryElement.parts`,
   use `CompilationUnitElement.parts` instead.
+* Deprecated `LibraryElement.scope`,
+  use `CompilationUnitElement.scope` instead.
 
 ## 6.9.0
 * `NormalFormalParameter` now implements `AnnotatedNode`.

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

@@ -419,6 +419,12 @@ abstract class CompilationUnitElement implements UriReferencedElement {
   /// The parts included by this unit.
   List<PartElement> get parts;
 
+  /// The scope used to resolve names within this compilation unit.
+  ///
+  /// It includes all of the elements that are declared in the library, and all
+  /// of the elements imported into this unit or parent units.
+  Scope get scope;
+
   @override
   AnalysisSession get session;
 
@@ -2094,6 +2100,7 @@ abstract class LibraryOrAugmentationElement implements Element {
   ///
   /// It consists of elements that are either declared in the library, or
   /// imported into it.
+  @Deprecated('Use CompilationUnitElement.scope')
   Scope get scope;
 
   @override

pkg/analyzer/test/src/dart/resolution/library_element_test.dart

@@ -177,6 +177,7 @@ class LibraryElementTest_featureSet extends PubPackageResolutionTest {
 
 @reflectiveTest
 class LibraryElementTest_scope extends PubPackageResolutionTest {
+  @deprecated
   test_lookup() async {
     await assertNoErrorsInCode(r'''
 int foo = 0;
@@ -194,6 +195,7 @@ int foo = 0;
     );
   }
 
+  @deprecated
   test_lookup_extension_unnamed() async {
     await assertNoErrorsInCode(r'''
 extension on int {}
@@ -206,6 +208,7 @@ extension on int {}
     );
   }
 
+  @deprecated
   test_lookup_implicitCoreImport() async {
     await assertNoErrorsInCode('');
 
@@ -217,6 +220,7 @@ extension on int {}
     );
   }
 
+  @deprecated
   test_lookup_notFound() async {
     await assertNoErrorsInCode('');
 
@@ -231,6 +235,7 @@ extension on int {}
     );
   }
 
+  @deprecated
   test_lookup_prefersLocal() async {
     await assertNoErrorsInCode(r'''
 // ignore:unused_import
@@ -252,6 +257,7 @@ int sin() => 3;
     );
   }
 
+  @deprecated
   test_lookup_prefix() async {
     await assertNoErrorsInCode(r'''
 // ignore:unused_import
@@ -266,6 +272,7 @@ import 'dart:math' as math;
     );
   }
 
+  @deprecated
   test_lookup_respectsCombinator_hide() async {
     await assertNoErrorsInCode(r'''
 // ignore:unused_import
@@ -289,6 +296,7 @@ import 'dart:math' hide sin;
     );
   }
 
+  @deprecated
   test_lookup_respectsCombinator_show() async {
     await assertNoErrorsInCode(r'''
 // ignore:unused_import