Associate excludes with context data.

pkg/analyzer/lib/src/context/context.dart

Index: pkg/analyzer/lib/src/context/context.dart
diff --git a/pkg/analyzer/lib/src/context/context.dart b/pkg/analyzer/lib/src/context/context.dart
index 51e2c478867e7dac27e0caa7df38bac394dd99f0..26dc99ba3a84ce3b1f780df84af1e8cd54f7c731 100644
--- a/pkg/analyzer/lib/src/context/context.dart
+++ b/pkg/analyzer/lib/src/context/context.dart
@@ -34,6 +34,7 @@ import 'package:analyzer/src/task/dart_work_manager.dart';
 import 'package:analyzer/src/task/driver.dart';
 import 'package:analyzer/src/task/incremental_element_builder.dart';
 import 'package:analyzer/src/task/manager.dart';
+import 'package:analyzer/src/task/model.dart';
 import 'package:analyzer/task/dart.dart';
 import 'package:analyzer/task/general.dart';
 import 'package:analyzer/task/html.dart';
@@ -41,6 +42,13 @@ import 'package:analyzer/task/model.dart';
 import 'package:html/dom.dart' show Document;
 
 /**
+ * The descriptor used to associate exclude patterns with an analysis context in
+ * configuration data.
+ */
+final ResultDescriptor<List<String>> CONTEXT_EXCLUDES =

[scheglov, 2016/07/26 17:21:20]

ListResultDescriptor<String>

[pquitslund, 2016/07/26 17:24:15]

Done.

+    new ResultDescriptorImpl('context.excludes', const <String>[]);

[scheglov, 2016/07/26 17:21:20]

Currently we use the name of the ResultDescriptor variable as the name of the
result.
I.e. 'CONTEXT_EXCLUDES' instead of 'context.excludes'.

[pquitslund, 2016/07/26 17:24:14]

Done.

+
+/**
  * Type of callback functions used by PendingFuture. Functions of this type
  * should perform a computation based on the data in [entry] and return it. If
  * the computation can't be performed yet because more analysis is needed,