Implement ObjectMirror.[]

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 1a84d70af30bd75d7d49c083328bf5e6cc616ead..2651d723a5295400155dd520b5e175e2a4493b9a 100644
--- a/sdk/lib/mirrors/mirrors.dart
+++ b/sdk/lib/mirrors/mirrors.dart
@@ -475,6 +475,30 @@ abstract class InstanceMirror implements ObjectMirror {
    *             invocation.namedArguments);
    */
   delegate(Invocation invocation);
+
+  /**
+   * Returns a closure for invoking the regular method named [name].
+   *
+   * If [:type.instanceLookup(name):] returns a regular method m, the result of
+   * this method is a closure equivalent to:
+   *
+   *     (r1, ..., rn, {p1: d1, ..., pk: dk}) {
+   *       return this.invoke(name, [r1, ..., rn], {#p1: p1,  ..., #pk: pk});
+   *     }
+   *
+   * if m has required parameters r1, ..., rn, and named parameters p1, ..., pk
+   * with defaults d1, ..., dk. The result of this method is a
+   * closure equivalent to:
+   *
+   *     (r1, ..., rn, [p1 = d1, ..., pk = dk]) {
+   *       return this.invoke(name, [r1, ..., rn, p1, ..., pk]);
+   *     }
+   *
+   * if m has required parameters r1, ..., rn, and optional positional
+   * parameters p1, ..., pk with defaults d1, ..., dk.  Otherwise, an
+   * [ArgumentError] is thrown.
+   */
+  Function operator [](Symbol name);
 }
 
 /**
@@ -566,6 +590,28 @@ abstract class LibraryMirror implements DeclarationMirror, ObjectMirror {
    * the same library in the same isolate.
    */
    bool operator ==(other);
+
+  /**
+   * If [:declarations[name]:] is a regular method m, the result of this method
+   * is a closure equivalent to:
+   *
+   *     (r1, ..., rn, {p1: d1, ..., pk: dk}) {
+   *       return this.invoke(name, [r1, ..., rn], {#p1: p1, ..., #pk: pk});
+   *     }
+   *
+   * if m has required parameters r1, ..., rn, and named parameters p1, ..., pk
+   * with defaults d1, ..., dk. The result of this method is a
+   * closure equivalent to:
+   *
+   *     (r1, ..., rn, [p1 = d1, ..., pk = dk]) {
+   *       return this.invoke(name, [r1, ..., rn, p1, ..., pk]);
+   *     }
+   *
+   * if m has required parameters r1, ..., rn, and optional positional
+   * parameters p1, ..., pk with defaults d1, ..., dk.  Otherwise, an
+   * [ArgumentError] is thrown.
+   */
+  Function operator [](Symbol name);
 }
 
 /**
@@ -723,6 +769,28 @@ abstract class ClassMirror implements TypeMirror, ObjectMirror {
    * and [other] have equal type arguments.
    */
    bool operator == (other);
+
+  /**
+   * If [:declarations[name]:] is a regular method m, the result of this method
+   * is a closure equivalent to:
+   *
+   *     (r1, ..., rn, {p1: d1, ..., pk: dk}) {
+   *       return this.invoke(name, [r1, ..., rn], {#p1: p1, ..., #pk: pk});
+   *     }
+   *
+   * if m has required parameters r1, ..., rn, and named parameters p1, ..., pk
+   * with defaults d1, ..., dk. The result of this method is a
+   * closure equivalent to:
+   *
+   *     (r1, ..., rn, [p1 = d1, ..., pk = dk]) {
+   *       return this.invoke(name, [r1, ..., rn, p1, ..., pk]);
+   *     }
+   *
+   * if m has required parameters r1, ..., rn, and optional positional
+   * parameters p1, ..., pk with defaults d1, ..., dk.  Otherwise, an
+   * [ArgumentError] is thrown.
+   */
+  Function operator [](Symbol name);
 }
 
 /**