Add LibraryMirror.declarations and ClassMirror.declarations to the API and both implementations.

sdk/lib/mirrors/mirrors.dart

Index: sdk/lib/mirrors/mirrors.dart
diff --git a/sdk/lib/mirrors/mirrors.dart b/sdk/lib/mirrors/mirrors.dart
index eddaa77176109e67e567e9d111b55ddd82a0f1f4..8fbc2b1bac07e4317e58ce0bf5c2d28a247f2c20 100644
--- a/sdk/lib/mirrors/mirrors.dart
+++ b/sdk/lib/mirrors/mirrors.dart
@@ -676,6 +676,15 @@ abstract class LibraryMirror implements DeclarationMirror, ObjectMirror {
   Uri get uri;
 
   /**
+   * Returns an immutable map of the declarations actually given in the library.
+   * 
+   * This map includes all regular methods, getters, setters, fields, classes
+   * and typedefs actually declared in the library. The map is keyed by the
+   * simple names of the declarations.
+   */
+  Map<Symbol, DeclarationMirror> get declarations;
+
+  /**
    * An immutable map from from names to mirrors for all members in
    * this library.
    *
@@ -732,7 +741,7 @@ abstract class LibraryMirror implements DeclarationMirror, ObjectMirror {
    * are
    * the same library in the same isolate.
    */
-   bool operator == (other);
+   bool operator ==(other);
 }
 
 /**
@@ -781,6 +790,17 @@ abstract class ClassMirror implements TypeMirror, ObjectMirror {
    */
   List<ClassMirror> get superinterfaces;
 
+  /** 
+   * Returns an immutable map of the declarations actually given in the class
+   * declaration.
+   *
+   * This map includes all regular methods, getters, setters, fields,
+   * constructors and type variables actually declared in the class. Both
+   * static and instance members are included, but no inherited members are
+   * included. The map is keyed by the simple names of the declarations.
+   */
+  Map<Symbol, DeclarationMirror> get declarations;

[gbracha, 2013/10/22 22:26:50]

So, we are providing typeVariables as an accessor in TypeMirror to deal with
both generic classes and generic typedefs. Should we still provide type
variables as part of declarations? Arguably yes, because that gives us a
complete picture of all the names declared in the scope of the class, but ar ewe
sure?

+
   /**
    * The mixin of this class.
    * If this class is the result of a mixin application of the