Add '--finer-grained-invalidation' option to Analysis Server.

pkg/analyzer/test/src/context/context_test.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 analyzer.test.src.context.context_test;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analyzer/dart/ast/ast.dart';
@@ skipping 1842 matching lines @@
         addSource("/test.dart", "library lib; part 'test-part.dart';");
     Source partSource = addSource("/test-part.dart", "part of lib;");
     _analyzeAll_assertFinished();
     expect(context.getResolvedCompilationUnit2(libSource, libSource), isNotNull,
         reason: "library resolved 1");
     expect(
         context.getResolvedCompilationUnit2(partSource, libSource), isNotNull,
         reason: "part resolved 1");
     // update and analyze #1
     context.setContents(partSource, "part of lib; // 1");
-    if (AnalysisEngine.instance.limitInvalidationInTaskModel) {
+    if (context.analysisOptions.finerGrainedInvalidation) {
       expect(
           context.getResolvedCompilationUnit2(libSource, libSource), isNotNull,
           reason: "library changed 2");
       expect(
           context.getResolvedCompilationUnit2(partSource, libSource), isNotNull,
           reason: "part changed 2");
     } else {
       expect(context.getResolvedCompilationUnit2(libSource, libSource), isNull,
           reason: "library changed 2");
       expect(context.getResolvedCompilationUnit2(partSource, libSource), isNull,
           reason: "part changed 2");
       _analyzeAll_assertFinished();
       expect(
           context.getResolvedCompilationUnit2(libSource, libSource), isNotNull,
           reason: "library resolved 2");
       expect(
           context.getResolvedCompilationUnit2(partSource, libSource), isNotNull,
           reason: "part resolved 2");
     }
     // update and analyze #2
     context.setContents(partSource, "part of lib; // 12");
-    if (AnalysisEngine.instance.limitInvalidationInTaskModel) {
+    if (context.analysisOptions.finerGrainedInvalidation) {
       expect(
           context.getResolvedCompilationUnit2(libSource, libSource), isNotNull,
           reason: "library changed 3");
       expect(
           context.getResolvedCompilationUnit2(partSource, libSource), isNotNull,
           reason: "part changed 3");
     } else {
       expect(context.getResolvedCompilationUnit2(libSource, libSource), isNull,
           reason: "library changed 3");
       expect(context.getResolvedCompilationUnit2(partSource, libSource), isNull,
@@ skipping 135 matching lines @@
   }
 
   void test_performAnalysisTask_IOException() {
     TestSource source = _addSourceWithException2("/test.dart", "library test;");
     source.generateExceptionOnRead = false;
     _analyzeAll_assertFinished();
     expect(source.readCount, 2);
     _changeSource(source, "");
     source.generateExceptionOnRead = true;
     _analyzeAll_assertFinished();
-    if (AnalysisEngine.instance.limitInvalidationInTaskModel) {
+    if (context.analysisOptions.finerGrainedInvalidation) {
       expect(source.readCount, 7);
     } else {
       expect(source.readCount, 4);
     }
   }
 
   void test_performAnalysisTask_missingPart() {
     Source source =
         addSource("/test.dart", "library lib; part 'no-such-file.dart';");
     _analyzeAll_assertFinished();
@@ skipping 575 matching lines @@
 
 @reflectiveTest
 /**
  * TODO(scheglov) After changes that affect only resolution in method bodies,
  * it is theoretically possible to keep the same element model and resolve
  * only corresponding method bodies.
  */
 class LimitedInvalidateTest extends AbstractContextTest {
   @override
   void setUp() {
-    AnalysisEngine.instance.limitInvalidationInTaskModel = true;
     super.setUp();
     AnalysisOptionsImpl options =
         new AnalysisOptionsImpl.from(context.analysisOptions);
     options.incremental = true;
+    options.finerGrainedInvalidation = true;
     context.analysisOptions = options;
   }
 
-  @override
-  void tearDown() {
-    AnalysisEngine.instance.limitInvalidationInTaskModel = false;
-    super.tearDown();
-  }
-
   void test_sequence_class_give_take() {
     Source a = addSource(
         '/a.dart',
         r'''
 class A {}
 class B {}
 class C {}
 ''');
     Source b = addSource(
         '/b.dart',
@@ skipping 566 matching lines @@
    * Initialize the visitor.
    */
   _ElementGatherer();
 
   @override
   void visitElement(Element element) {
     elements[element] = element;
     super.visitElement(element);
   }
 }