Move all flags to CompilerOptions (first step to stop passing the compiler to

pkg/dart2js_incremental/lib/library_updater.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 dart2js_incremental.library_updater;
 
 import 'dart:async' show
     Future;
 
 import 'package:compiler/compiler.dart' as api;
@@ skipping 778 matching lines @@
         enqueuer.resolution.addToWorkList(element);
       } else {
         NO_WARN(element).ensureResolved(compiler);
       }
     }
     compiler.processQueue(enqueuer.resolution, null);
 
     compiler.phase = Compiler.PHASE_DONE_RESOLVING;
 
     // TODO(ahe): Clean this up. Don't call this method in analyze-only mode.
-    if (compiler.analyzeOnly) return "/* analyze only */";
+    if (compiler.options.analyzeOnly) return "/* analyze only */";
 
     Set<ClassElementX> changedClasses =
         new Set<ClassElementX>.from(_classesWithSchemaChanges);
     for (Element element in updatedElements) {
       if (!element.isClass) {
         enqueuer.codegen.addToWorkList(element);
       } else {
         changedClasses.add(element);
       }
     }
@@ skipping 702 matching lines @@
         .buildFieldsHackForIncrementalCompilation(classElement);
     // TODO(ahe): Rewrite for new emitter.
     ClassBuilder builder = new ClassBuilder(classElement, namer);
     classEmitter.emitFields(cls, builder);
     return builder.fields;
   }
 }
 
 // TODO(ahe): Remove this method.
 NO_WARN(x) => x;