Implement various mirror member maps

dart/sdk/lib/_internal/compiler/implementation/js_backend/emitter.dart

 // Copyright (c) 2012, 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.
 
 part of js_backend;
 
 /**
  * A function element that represents a closure call. The signature is copied
  * from the given element.
  */
@@ skipping 1114 matching lines @@
                                  element.getLibrary(),
                                  signature.requiredParameterCount + i,
                                  <SourceString>[]));
     }
     return selectors;
   }
 
   bool instanceFieldNeedsGetter(Element member) {
     assert(member.isField());
     if (fieldAccessNeverThrows(member)) return false;
-    return compiler.codegenWorld.hasInvokedGetter(member, compiler);
+    return compiler.mirrorsEnabled
+        || compiler.codegenWorld.hasInvokedGetter(member, compiler);
   }
 
   bool instanceFieldNeedsSetter(Element member) {
     assert(member.isField());
     if (fieldAccessNeverThrows(member)) return false;
     return (!member.modifiers.isFinalOrConst())
-        && compiler.codegenWorld.hasInvokedSetter(member, compiler);
+        && (compiler.mirrorsEnabled
+            || compiler.codegenWorld.hasInvokedSetter(member, compiler));
   }
 
   // We never access a field in a closure (a captured variable) without knowing
   // that it is there.  Therefore we don't need to use a getter (that will throw
   // if the getter method is missing), but can always access the field directly.
   static bool fieldAccessNeverThrows(Element element) {
     return element is ClosureFieldElement;
   }
 
   String compiledFieldName(Element member) {
@@ skipping 2230 matching lines @@
 
 const String HOOKS_API_USAGE = """
 // The code supports the following hooks:
 // dartPrint(message)   - if this function is defined it is called
 //                        instead of the Dart [print] method.
 // dartMainRunner(main) - if this function is defined, the Dart [main]
 //                        method will not be invoked directly.
 //                        Instead, a closure that will invoke [main] is
 //                        passed to [dartMainRunner].
 """;