Fix documentation drift between ClosureMirror.apply and the other reflective invocations.

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 027b197ffd55ad2d897b2d4ad55d7b080d770f1a..ce9c8e7ea0581ba188e52eb192a444d7cda3ec8f 100644
--- a/sdk/lib/mirrors/mirrors.dart
+++ b/sdk/lib/mirrors/mirrors.dart
@@ -538,7 +538,8 @@ abstract class ClosureMirror implements InstanceMirror {
    * If the invocation returns a result *r*, this method returns
    * the result of calling [reflect](*r*).
    * If the invocation causes a compilation error
-   * this method throws a [MirrorError].
+   * the effect is the same as if a non-reflective compilation error
+   * had been encountered.
    * If the invocation throws an exception *e* (that it does not catch)
    * this method throws *e*.
    */