Make Map.keys/values Iterables.

runtime/tests/vm/dart/isolate_mirror_local_test.dart

Index: runtime/tests/vm/dart/isolate_mirror_local_test.dart
diff --git a/runtime/tests/vm/dart/isolate_mirror_local_test.dart b/runtime/tests/vm/dart/isolate_mirror_local_test.dart
index 65e4a2665c0e310c62f461ae8c1968c80f5b0a66..26bc3ddf50e590ed1c36a9e8c2a2a2b78632a7a0 100644
--- a/runtime/tests/vm/dart/isolate_mirror_local_test.dart
+++ b/runtime/tests/vm/dart/isolate_mirror_local_test.dart
@@ -126,7 +126,7 @@ void testRootLibraryMirror(LibraryMirror lib_mirror) {
       });
 
   // Check that the members map is complete.
-  List keys = lib_mirror.members.keys;
+  List keys = lib_mirror.members.keys.toList();
   sort(keys);
   Expect.equals('['
                 'FuncType, '
@@ -163,7 +163,7 @@ void testRootLibraryMirror(LibraryMirror lib_mirror) {
                 '$keys');
 
   // Check that the classes map is complete.
-  keys = lib_mirror.classes.keys;
+  keys = lib_mirror.classes.keys.toList();
   sort(keys);
   Expect.equals('['
                 'FuncType, '
@@ -175,7 +175,7 @@ void testRootLibraryMirror(LibraryMirror lib_mirror) {
                 '$keys');
 
   // Check that the functions map is complete.
-  keys = lib_mirror.functions.keys;
+  keys = lib_mirror.functions.keys.toList();
   sort(keys);
   Expect.equals('['
                 '_stringCompare, '
@@ -201,17 +201,17 @@ void testRootLibraryMirror(LibraryMirror lib_mirror) {
                 '$keys');
 
   // Check that the getters map is complete.
-  keys = lib_mirror.getters.keys;
+  keys = lib_mirror.getters.keys.toList();
   sort(keys);
   Expect.equals('[myVar]', '$keys');
 
   // Check that the setters map is complete.
-  keys = lib_mirror.setters.keys;
+  keys = lib_mirror.setters.keys.toList();
   sort(keys);
   Expect.equals('[myVar=]', '$keys');
 
   // Check that the variables map is complete.
-  keys = lib_mirror.variables.keys;
+  keys = lib_mirror.variables.keys.toList();
   sort(keys);
   Expect.equals('['
                 'exit_port, '