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

pkg/compiler/lib/src/js_backend/lookup_map_analysis.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.
 
 /// Analysis to determine how to generate code for `LookupMap`s.
 library compiler.src.js_backend.lookup_map_analysis;
 
 import '../common.dart';
 import '../common/registry.dart' show Registry;
 import '../compiler.dart' show Compiler;
@@ skipping 289 matching lines @@
 
     _lookupMaps.values.forEach((info) {
       assert (!info.emitted);
       info.emitted = true;
       info._prepareForEmission();
     });
 
     // When --verbose is passed, we show the total number and set of keys that
     // were tree-shaken from lookup maps.
     Compiler compiler = backend.compiler;
-    if (compiler.verbose) {
+    if (compiler.options.verbose) {
       var sb = new StringBuffer();
       int count = 0;
       for (var info in _lookupMaps.values) {
         for (var key in info.unusedEntries.keys) {
           if (count != 0) sb.write(',');
           sb.write(key.unparse());
           count++;
         }
       }
       reporter.log(count == 0
@@ skipping 114 matching lines @@
       }
     } else {
       original.fields[analysis.entriesField] =
           new ListConstantValue(listType, keyValuePairs);
     }
   }
 }
 
 final _validLookupMapVersionConstraint =
     new VersionConstraint.parse('^0.0.1');