Rename mappedBy to map.

runtime/lib/byte_array.dart

Index: runtime/lib/byte_array.dart
diff --git a/runtime/lib/byte_array.dart b/runtime/lib/byte_array.dart
index 9794eba4ca99a3c1fa4eed8df9cf5976e05a5ad9..74e2c3a357360a02f59b6fd02dea8c57a0f822b1 100644
--- a/runtime/lib/byte_array.dart
+++ b/runtime/lib/byte_array.dart
@@ -229,6 +229,10 @@ abstract class _ByteArrayBase {
     }
   }
 
+  Iterable map(f(int element)) {
+    return IterableMixinWorkaround.map(this, f);
+  }
+
   List mappedBy(f(int element)) {
     return IterableMixinWorkaround.mappedByList(this, f);
   }
@@ -246,7 +250,7 @@ abstract class _ByteArrayBase {
     return IterableMixinWorkaround.where(this, f);
   }
 
-  List<int> take(int n) {
+  Iterable<int> take(int n) {
     return IterableMixinWorkaround.takeList(this, n);
   }
 
@@ -254,7 +258,7 @@ abstract class _ByteArrayBase {
     return IterableMixinWorkaround.takeWhile(this, test);
   }
 
-  List<int> skip(int n) {
+  Iterable<int> skip(int n) {
     return IterableMixinWorkaround.skipList(this, n);
   }