Index: sdk/lib/_internal/compiler/implementation/js_backend/backend.dart |
diff --git a/sdk/lib/_internal/compiler/implementation/js_backend/backend.dart b/sdk/lib/_internal/compiler/implementation/js_backend/backend.dart |
index 8b6f8725ad2f945ae4b9170ad68dae3e29f9da01..7805e3268277f24fa5a25dd2da917dec2bf219b2 100644 |
--- a/sdk/lib/_internal/compiler/implementation/js_backend/backend.dart |
+++ b/sdk/lib/_internal/compiler/implementation/js_backend/backend.dart |
@@ -1430,6 +1430,7 @@ class JavaScriptBackend extends Backend { |
compiler.disableTypeInferenceForMirrors = true; |
isTreeShakingDisabled = true; |
enqueuer.enqueueEverything(); |
+ throw 'Unexpected disable tree shaking'; |
} else if (element == preserveNamesMarker) { |
if (mustPreserveNames) return; |
mustPreserveNames = true; |