Elements. Remove V1 MethodElement.

Change-Id: Iefc0f398e98e16328a45b183373e440e25321afb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/423207
Reviewed-by: Brian Wilkerson <[email protected]>
Commit-Queue: Konstantin Shcheglov <[email protected]>

Author: scheglov

pkg/analyzer/api.txt

@@ -3240,9 +3240,6 @@ package:analyzer/dart/element/element.dart:
     new (constructor: LocalVariableElement Function())
     hasInitializer (getter: bool)
     name (getter: String)
-  MethodElement (class extends Object implements ClassMemberElement, ExecutableElement, deprecated):
-    new (constructor: MethodElement Function())
-    declaration (getter: MethodElement)
   NamespaceCombinator (class extends Object, sealed (immediate subtypes: HideElementCombinator, ShowElementCombinator)):
     end (getter: int)
     offset (getter: int)

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

@@ -1149,15 +1149,6 @@ abstract class LocalVariableElement implements PromotableElement {
   String get name;
 }
 
-/// An element that represents a method defined within a class.
-///
-/// Clients may not extend, implement or mix-in this class.
-@Deprecated('Use MethodElement2 instead')
-abstract class MethodElement implements ClassMemberElement, ExecutableElement {
-  @override
-  MethodElement get declaration;
-}
-
 /// An object that controls how namespaces are combined.
 ///
 /// Clients may not extend, implement or mix-in this class.

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

@@ -7927,11 +7927,7 @@ class MethodElementImpl2 extends ExecutableElementImpl2
 
 /// Common base class for all analyzer-internal classes that implement
 /// `MethodElement`.
-abstract class MethodElementOrMember
-    implements
-        // ignore:deprecated_member_use_from_same_package,analyzer_use_new_elements
-        MethodElement,
-        ExecutableElementOrMember {
+abstract class MethodElementOrMember implements ExecutableElementOrMember {
   @override
   TypeImpl get returnType;
 

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

@@ -499,16 +499,6 @@ extension LocalVariableElementImplExtension on LocalVariableElementImpl {
   }
 }
 
-extension MethodElement2Extension on MethodElement2 {
-  @Deprecated('Use MethodElement2 instead')
-  MethodElement get asElement {
-    if (this case MethodMember member) {
-      return member;
-    }
-    return (this as MethodElementImpl2).lastFragment;
-  }
-}
-
 extension MethodElement2OrMemberExtension on MethodElement2OrMember {
   MethodElementOrMember get asElement {
     if (this case MethodMember member) {