Removed IllegalAccessException and UnsupportedOperationException.

pkg/dartdoc/lib/src/mirrors/util.dart

Index: pkg/dartdoc/lib/src/mirrors/util.dart
diff --git a/pkg/dartdoc/lib/src/mirrors/util.dart b/pkg/dartdoc/lib/src/mirrors/util.dart
index 760b9d288fea7ca0e48db8375775097242c91417..c73f5c8649a419a6ee321bdcc810aa220a561629 100644
--- a/pkg/dartdoc/lib/src/mirrors/util.dart
+++ b/pkg/dartdoc/lib/src/mirrors/util.dart
@@ -18,11 +18,11 @@ abstract class AbstractMap<K,V> implements Map<K,V> {
   }
 
   void operator []=(K key, value) {
-    throw new UnsupportedOperationException('[]= is not supported');
+    throw new UnsupportedError('[]= is not supported');
   }
 
   void clear() {
-    throw new UnsupportedOperationException('clear() is not supported');
+    throw new UnsupportedError('clear() is not supported');
   }
 
   bool containsKey(K key) {
@@ -68,13 +68,13 @@ abstract class AbstractMap<K,V> implements Map<K,V> {
   }
 
   V remove(K key) {
-    throw new UnsupportedOperationException('V remove(K key) is not supported');
+    throw new UnsupportedError('V remove(K key) is not supported');
   }
 }
 
 /**
  * [ImmutableMapWrapper] wraps a (mutable) map as an immutable map where all
- * mutating operations throw [UnsupportedOperationException] upon invocation.
+ * mutating operations throw [UnsupportedError] upon invocation.
  */
 class ImmutableMapWrapper<K,V> extends AbstractMap<K,V> {
   final Map<K,V> _map;