Implementation of the 'search.getTypeHierarchy' API.

pkg/analysis_services/lib/constants.dart

Index: pkg/analysis_services/lib/constants.dart
diff --git a/pkg/analysis_services/lib/constants.dart b/pkg/analysis_services/lib/constants.dart
index dab2e6e2c0a247e9c70f91438cebf75d212e593c..7158977a1e0fadaee5bede1d6f491d0d3f568ac6 100644
--- a/pkg/analysis_services/lib/constants.dart
+++ b/pkg/analysis_services/lib/constants.dart
@@ -9,6 +9,7 @@ library services.constants;
 //
 const String ADDED = 'added';
 const String CHILDREN = 'children';
+const String CLASS_ELEMENT = 'classElement';
 const String COMPLETION = 'completion';
 const String CONTAINING_LIBRARY_NAME = 'containingLibraryName';
 const String CONTAINING_LIBRARY_PATH = 'containingLibraryPath';
@@ -16,6 +17,7 @@ const String CONTENT = 'content';
 const String CORRECTION = 'correction';
 const String DART_DOC = 'dartdoc';
 const String DEFAULT = 'default';
+const String DISPLAY_NAME = 'displayName';
 const String EDITS = 'edits';
 const String ELEMENT = 'element';
 const String ELEMENT_DESCRIPTION = 'elementDescription';
@@ -27,11 +29,13 @@ const String FILE = 'file';
 const String FILES = 'files';
 const String FIXES = 'fixes';
 const String FLAGS = 'flags';
+const String HIERARCHY = 'hierarchy';
 const String HOVERS = 'hovers';
 const String ID = 'id';
 const String INCLUDE_POTENTIAL = 'includePotential';
 const String INCLUDED = 'included';
 const String INTERFACE_ELEMENTS = 'interfaceElements';
+const String INTERFACES = 'interfaces';
 const String IS_ABSTRACT = 'isAbstract';
 const String IS_DEPRECATED = 'isDeprecated';
 const String IS_POTENTIAL = 'isPotential';
@@ -41,7 +45,9 @@ const String LAST = 'last';
 const String LENGTH = 'length';
 const String LINKED_POSITION_GROUPS = 'linkedPositionGroups';
 const String LOCATION = 'location';
+const String MEMBER_ELEMENT = 'memberElement';
 const String MESSAGE = 'message';
+const String MIXINS = 'mixins';
 const String NAME = 'name';
 const String NEW_LENGTH = 'newLength';
 const String OCCURRENCES = 'occurrences';
@@ -70,7 +76,9 @@ const String SELECTION_OFFSET = 'selectionOffset';
 const String START_COLUMN = 'startColumn';
 const String START_LINE = 'startLine';
 const String STATIC_TYPE = 'staticType';
+const String SUBCLASSES = 'subclasses';
 const String SUBSCRIPTIONS = 'subscriptions';
+const String SUPERCLASS = 'superclass';
 const String SUPER_CLASS_ELEMENT = 'superclassElement';
 const String TARGETS = 'targets';
 const String TYPE = 'type';