Make methods on isolate external.

tests/isolate/isolate.status

Index: tests/isolate/isolate.status
diff --git a/tests/isolate/isolate.status b/tests/isolate/isolate.status
index 1f685bfb8043ae0de77c8309dc951962604d8cc8..1e6a52fae9b0f64c8f98a16a2fafeb2b48f976eb 100644
--- a/tests/isolate/isolate.status
+++ b/tests/isolate/isolate.status
@@ -12,19 +12,19 @@ mandel_isolate_test: Skip # Uses 600 MB Ram on our 1 GB test device.
 [ $compiler == none || $compiler == dart2dart ]
 serialization_test: SkipByDesign # Tests dart2js-specific serialization code
 compile_time_error_test/01: Skip # Issue 12587
-capability_test: Fail   # Not implemented yet
-pause_test: Fail        # Not implemented yet
-start_paused_test: Fail # Not implemented yet
-ondone_test: Skip       # Not implemented yet, hangs.
-ping_test: Fail         # Not implemented yet
-ping_pause_test: Fail   # Not implemented yet
-kill_test: Skip         # Not implemented yet, hangs.
-kill2_test: Skip        # Not implemented yet, hangs.
-kill3_test: Skip        # Not implemented yet, hangs.
-kill_self_test: Skip    # Not implemented yet, hangs.
-handle_error_test: Skip # Not implemented yet, hangs.
-handle_error2_test: Skip # Not implemented yet, hangs.
-handle_error3_test: Skip # Not implemented yet, hangs.
+capability_test: Fail     # Not implemented yet
+pause_test: Fail          # Not implemented yet
+start_paused_test: Fail   # Not implemented yet
+ondone_test: Fail         # Not implemented yet
+ping_test: Fail           # Not implemented yet
+ping_pause_test: Fail     # Not implemented yet
+kill_test: Fail           # Not implemented yet
+kill2_test: Fail          # Not implemented yet
+kill3_test: Fail          # Not implemented yet
+kill_self_test: Fail      # Not implemented yet
+handle_error_test: Fail   # Not implemented yet
+handle_error2_test: Fail  # Not implemented yet
+handle_error3_test: Fail  # Not implemented yet
 
 [ $compiler == dart2js && $jscl ]
 browser/*: SkipByDesign  # Browser specific tests