Added 'inherited' flag for PyType.resolveMember

Do not try class members providers for ancestor classes before class
members providers for the current class.

python/psi-api/src/com/jetbrains/python/psi/types/PyType.java

@@ -22,18 +22,18 @@ public interface PyType {
   /**
    * Resolves an attribute of type.
    *
-   *
    * @param name      attribute name
    * @param location  the expression of type qualifierType on which the member is being resolved (optional)
    * @param direction
    * @param resolveContext
+   * @param inherited look up inherited members and members provided by class providers
    * @return null if name definitely cannot be found (e.g. in a qualified reference),
    *         or an empty list if name is not found but other contexts are worth looking at,
    *         or a list of elements that define the name, a la multiResolve().
    */
   @Nullable
   List<? extends RatedResolveResult> resolveMember(@NotNull final String name, @Nullable PyExpression location, AccessDirection direction,
-                                                   PyResolveContext resolveContext);
+                                                   PyResolveContext resolveContext, boolean inherited);
 
   /**
    * Proposes completion variants from type's attributes.