Elements. Remove V1 LocalElement, PromotableElement.

Change-Id: Ifd11fcfd740c848e570ef076b20b9e43bbeb0cea
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/423066
Commit-Queue: Konstantin Shcheglov <[email protected]>
Reviewed-by: Brian Wilkerson <[email protected]>

Author: scheglov

pkg/analyzer/api.txt

@@ -3164,17 +3164,12 @@ package:analyzer/dart/element/element.dart:
     effective (getter: Version)
     override (getter: Version?)
     package (getter: Version)
-  LocalElement (class extends Object implements Element, deprecated):
-    new (constructor: LocalElement Function())
   NamespaceCombinator (class extends Object, sealed (immediate subtypes: HideElementCombinator, ShowElementCombinator)):
     end (getter: int)
     offset (getter: int)
   PartElement (class extends Object implements _ExistingElement, deprecated):
     new (constructor: PartElement Function())
     uri (getter: DirectiveUri)
-  PromotableElement (class extends Object implements LocalElement, VariableElement, deprecated):
-    new (constructor: PromotableElement Function())
-    name (getter: String)
   ShowElementCombinator (class extends Object implements NamespaceCombinator):
     new (constructor: ShowElementCombinator Function())
     shownNames (getter: List<String>)

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

@@ -856,13 +856,6 @@ class LibraryLanguageVersion {
   }
 }
 
-/// An element that can be (but is not required to be) defined within a method
-/// or function (an [ExecutableElement]).
-///
-/// Clients may not extend, implement or mix-in this class.
-@Deprecated('Use LocalElement2 instead')
-abstract class LocalElement implements Element {}
-
 /// An object that controls how namespaces are combined.
 ///
 /// Clients may not extend, implement or mix-in this class.
@@ -884,17 +877,6 @@ abstract class PartElement implements _ExistingElement {
   DirectiveUri get uri;
 }
 
-/// A variable that might be subject to type promotion.  This might be a local
-/// variable or a parameter.
-///
-/// Clients may not extend, implement or mix-in this class.
-@Deprecated('Use PromotableElement2 instead')
-abstract class PromotableElement implements LocalElement, VariableElement {
-  // Promotable elements are guaranteed to have a name.
-  @override
-  String get name;
-}
-
 /// A combinator that cause some of the names in a namespace to be visible (and
 /// the rest hidden) when being imported.
 ///