Use separate relation kinds for qualified usages.

pkg/analyzer/lib/src/summary/idl.dart

 // Copyright (c) 2015, 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.
 
 /**
  * This file is an "idl" style description of the summary format.  It
  * contains abstract classes which declare the interface for reading data from
  * summaries.  It is parsed and transformed into code that implements the
  * summary format.
  *
@@ skipping 131 matching lines @@
   /**
    * If this is an instantiation of a generic type or generic executable, the
    * type arguments used to instantiate it.  Trailing type arguments of type
    * `dynamic` are omitted.
    */
   @Id(1)
   List<EntityRef> get typeArguments;
 }
 
 /**
- * When we need to reference a synthetic element in [PackageIndex] we use a
- * value of this enum to specify which kind of the synthetic element we
- * actually reference.
- */
-enum IndexSyntheticElementKind {
-  /**
-   * Not a synthetic element.
-   */
-  notSynthetic,
-
-  /**
-   * The unnamed synthetic constructor a class element.
-   */
-  constructor,
-
-  /**
-   * The synthetic getter of a property introducing element.
-   */
-  getter,
-
-  /**
-   * The synthetic setter of a property introducing element.
-   */
-  setter
-}
-
-/**
- * Enum used to indicate the kind of index relation.
+ * Enum used to indicate the kind of an index relation.
  */
 enum IndexRelationKind {
   /**
    * Left: class.
    *   Is extended by.
    * Right: other class declaration.
    */
   IS_EXTENDED_BY,
 
   /**
@@ skipping 11 matching lines @@
   IS_MIXED_IN_BY,
 
   /**
    * Left: method, property accessor, function, variable.
    *   Is invoked at.
    * Right: location.
    */
   IS_INVOKED_BY,
 
   /**
+   * Left: method, property accessor, function, variable.
+   *   Is invoked with a qualifier at.
+   * Right: location.
+   */
+  IS_INVOKED_QUALIFIED_BY,
+
+  /**
    * Left: any element.
    *   Is referenced (and not invoked, read/written) at.
    * Right: location.
    */
-  IS_REFERENCED_BY
+  IS_REFERENCED_BY,
+
+  /**
+   * Left: any element.
+   *   Is referenced (and not invoked, read/written) with a qualifier at.
+   * Right: location.
+   */
+  IS_REFERENCED_QUALIFIED_BY
 }
 
 /**
+ * When we need to reference a synthetic element in [PackageIndex] we use a
+ * value of this enum to specify which kind of the synthetic element we
+ * actually reference.
+ */
+enum IndexSyntheticElementKind {
+  /**
+   * Not a synthetic element.
+   */
+  notSynthetic,
+
+  /**
+   * The unnamed synthetic constructor a class element.
+   */
+  constructor,
+
+  /**
+   * The synthetic getter of a property introducing element.
+   */
+  getter,
+
+  /**
+   * The synthetic setter of a property introducing element.
+   */
+  setter
+}
+
+/**
  * Information about a dependency that exists between one library and another
  * due to an "import" declaration.
  */
 abstract class LinkedDependency extends base.SummaryClass {
   /**
    * URI for the compilation units listed in the library's `part` declarations.
    * These URIs are relative to the importing library.
    */
   @Id(1)
   List<String> get parts;
@@ skipping 1947 matching lines @@
    */
   @Id(11)
   int get visibleLength;
 
   /**
    * If a local variable, the beginning of the visible range; zero otherwise.
    */
   @Id(12)
   int get visibleOffset;
 }