more progress implementing analysis server code completion

pkg/analysis_services/lib/constants.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.constants;
+
+//
+// Property names
+//
+const String ADDED = 'added';
+const String CHILDREN = 'children';
+const String COMPLETION = 'completion';
+const String CONTAINING_LIBRARY_NAME = 'containingLibraryName';
+const String CONTAINING_LIBRARY_PATH = 'containingLibraryPath';
+const String CONTENT = 'content';
+const String CORRECTION = 'correction';
+const String DART_DOC = 'dartdoc';
+const String DEFAULT = 'default';
+const String ELEMENT = 'element';
+const String ELEMENT_DESCRIPTION = 'elementDescription';
+const String ELEMENT_KIND = 'elementKind';
+const String EXCLUDED = 'excluded';
+const String ERRORS = 'errors';
+const String FILE = 'file';
+const String FILES = 'files';
+const String FIXES = 'fixes';
+const String FLAGS = 'flags';
+const String HOVERS = 'hovers';
+const String ID = 'id';
+const String INCLUDE_POTENTIAL = 'includePotential';
+const String INCLUDED = 'included';
+const String INTERFACE_ELEMENTS = 'interfaceElements';
+const String IS_ABSTRACT = 'isAbstract';
+const String IS_DEPRECATED = 'isDeprecated';
+const String IS_POTENTIAL = 'isPotential';
+const String IS_STATIC = 'isStatic';
+const String KIND = 'kind';
+const String LAST = 'last';
+const String LENGTH = 'length';
+const String LOCATION = 'location';
+const String MESSAGE = 'message';
+const String NAME = 'name';
+const String NEW_LENGTH = 'newLength';
+const String OCCURRENCES = 'occurrences';
+const String OFFSET = 'offset';
+const String OFFSETS = 'offsets';
+const String OLD_LENGTH = 'oldLength';
+const String OPTIONS = 'options';
+const String OUTLINE = 'outline';
+const String OVERRIDES = 'overrides';
+const String PARAMETER = 'parameter';
+const String PARAMETERS = 'parameters';
+const String PATH = 'path';
+const String PATTERN = 'pattern';
+const String PROPAGATED_TYPE = 'propagatedType';
+const String REFACTORINGS = 'refactorings';
+const String REGIONS = 'regions';
+const String RELEVANCE = 'relevance';
+const String REMOVED = 'removed';
+const String RETURN_TYPE = 'returnType';
+const String RESULTS = 'results';
+const String SEVERITY = 'severity';
+const String SELECTION_LENGTH = 'selectionLength';
+const String SELECTION_OFFSET = 'selectionOffset';
+const String START_COLUMN = 'startColumn';
+const String START_LINE = 'startLine';
+const String STATIC_TYPE = 'staticType';
+const String SUBSCRIPTIONS = 'subscriptions';
+const String SUPER_CLASS_ELEMENT = 'superclassElement';
+const String TARGETS = 'targets';
+const String TYPE = 'type';
+const String VERSION = 'version';