do not suggest static methods from superclass - fixes #24258

pkg/analysis_server/test/services/completion/dart/static_member_contributor_test.dart

Index: pkg/analysis_server/test/services/completion/dart/static_member_contributor_test.dart
diff --git a/pkg/analysis_server/test/services/completion/dart/static_member_contributor_test.dart b/pkg/analysis_server/test/services/completion/dart/static_member_contributor_test.dart
index d94ae5899ef9ade6d7d6031276061b17f15131ca..345c6558b68379b87957acdb2245218b00e608d8 100644
--- a/pkg/analysis_server/test/services/completion/dart/static_member_contributor_test.dart
+++ b/pkg/analysis_server/test/services/completion/dart/static_member_contributor_test.dart
@@ -63,8 +63,8 @@ class StaticMemberContributorTest extends DartCompletionContributorTest {
     expect(replacementOffset, completionOffset);
     expect(replacementLength, 0);
     assertSuggestField('scA', 'String');
-    assertSuggestField('scB', 'int');
-    assertSuggestField('scI', null);
+    assertNotSuggested('scB');
+    assertNotSuggested('scI');
     assertNotSuggested('b');
     assertNotSuggested('_c');
     assertNotSuggested('d');
@@ -122,7 +122,10 @@ class StaticMemberContributorTest extends DartCompletionContributorTest {
   test_only_static() async {
     // SimpleIdentifier  PrefixedIdentifier  ExpressionStatement
     addTestSource('''
-class C {
+class B {
+  static int b1;
+}
+class C extends B {
   int f1;
   static int f2;
   m1() {}
@@ -130,6 +133,7 @@ class C {
 }
 void main() {C.^}''');
     await computeSuggestions();
+    assertNotSuggested('b1');
     assertNotSuggested('f1');
     assertSuggestField('f2', 'int');
     assertNotSuggested('m1');
@@ -139,7 +143,10 @@ void main() {C.^}''');
   test_only_static2() async {
     // SimpleIdentifier  MethodInvocation  ExpressionStatement
     addTestSource('''
-class C {
+class B {
+  static int b1;
+}
+class C extends B {
   int f1;
   static int f2;
   m1() {}
@@ -147,6 +154,7 @@ class C {
 }
 void main() {C.^ print("something");}''');
     await computeSuggestions();
+    assertNotSuggested('b1');
     assertNotSuggested('f1');
     assertSuggestField('f2', 'int');
     assertNotSuggested('m1');