Add methods to Collection.

runtime/lib/array.dart

Index: runtime/lib/array.dart
diff --git a/runtime/lib/array.dart b/runtime/lib/array.dart
index 7caac16c243530ea8fcd43558853df47e3634b7f..165ba64812fe23e8c34f4db3210345b0c9ec585f 100644
--- a/runtime/lib/array.dart
+++ b/runtime/lib/array.dart
@@ -29,6 +29,31 @@ class _ObjectArray<E> implements List<E> {
         "Cannot remove element of a non-extendable array");
   }
 
+  void remove(Object element) {
+    throw new UnsupportedError(
+        "Cannot remove element of a non-extendable array");
+  }
+
+  void removeAll(Iterable elements) {
+    throw new UnsupportedError(
+        "Cannot remove element of a non-extendable array");
+  }
+
+  void retainAll(Iterable elements) {
+    throw new UnsupportedError(
+        "Cannot remove element of a non-extendable array");
+  }
+
+  void removeMatching(bool test(E element)) {
+    throw new UnsupportedError(
+        "Cannot remove element of a non-extendable array");
+  }
+
+  void retainMatching(bool test(E element)) {
+    throw new UnsupportedError(
+        "Cannot remove element of a non-extendable array");
+  }
+
   void setRange(int start, int length, List<E> from, [int startFrom = 0]) {
     if (length < 0) {
       throw new ArgumentError("negative length $length");
@@ -234,6 +259,31 @@ class _ImmutableArray<E> implements List<E> {
         "Cannot modify an immutable array");
   }
 
+  void remove(Object element) {
+    throw new UnsupportedError(
+        "Cannot modify an immutable array");
+  }
+
+  void removeAll(Iterable elements) {
+    throw new UnsupportedError(
+        "Cannot modify an immutable array");
+  }
+
+  void retainAll(Iterable elements) {
+    throw new UnsupportedError(
+        "Cannot modify an immutable array");
+  }
+
+  void removeMatching(bool test(E element)) {
+    throw new UnsupportedError(
+        "Cannot modify an immutable array");
+  }
+
+  void retainMatching(bool test(E element)) {
+    throw new UnsupportedError(
+        "Cannot modify an immutable array");
+  }
+
   void copyFrom(List src, int srcStart, int dstStart, int count) {
     throw new UnsupportedError(
         "Cannot modify an immutable array");