exclude instance suggestions in static context - fixes #22932

pkg/analysis_server/lib/src/services/completion/imported_reference_contributor.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library services.completion.contributor.dart.toplevel;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analysis_server/src/protocol_server.dart'
@@ skipping 169 matching lines @@
         }
       }
     });
   }
 
   /**
    * Add suggestions for any inherited imported members.
    */
   void _addInheritedSuggestions(AstNode node) {
     var classDecl = node.getAncestor((p) => p is ClassDeclaration);
-    if (classDecl is ClassDeclaration) {
+    if (classDecl is ClassDeclaration && !optype.inStaticMethodBody) {
       // Build a list of inherited types that are imported
       // and include any inherited imported members
       List<String> inheritedTypes = new List<String>();
       // local declarations are handled by the local reference contributor
       visitInheritedTypes(classDecl, importedTypeName: (String typeName) {
         inheritedTypes.add(typeName);
       });
       HashSet<String> visited = new HashSet<String>();
       while (inheritedTypes.length > 0) {
         String name = inheritedTypes.removeLast();
@@ skipping 53 matching lines @@
       _addFilteredSuggestions(filterText, cache.libraryPrefixSuggestions);
     }
     if (optype.includeReturnValueSuggestions) {
       _addFilteredSuggestions(filterText, cache.otherImportedSuggestions);
     }
     if (optype.includeVoidReturnSuggestions) {
       _addFilteredSuggestions(filterText, cache.importedVoidReturnSuggestions);
     }
   }
 }