rename test file

Author: kripken

test/js_optimizer/emitDCEGraph6-output.js …_optimizer/emitDCEGraph-scopes-output.jstest/js_optimizer/emitDCEGraph6-output.js renamed to test/js_optimizer/emitDCEGraph-scopes-output.js test/js_optimizer/emitDCEGraph6-output.js renamed to test/js_optimizer/emitDCEGraph-scopes-output.js

@@ -2896,7 +2896,7 @@ def test_extern_prepost(self):
     'emitDCEGraph3': (['emitDCEGraph', '--no-print'],),
     'emitDCEGraph4': (['emitDCEGraph', '--no-print'],),
     'emitDCEGraph5': (['emitDCEGraph', '--no-print'],),
-    'emitDCEGraph6': (['emitDCEGraph', '--no-print'],),
+    'emitDCEGraph-scopes': (['emitDCEGraph', '--no-print'],),
     'minimal-runtime-applyDCEGraphRemovals': (['applyDCEGraphRemovals'],),
     'applyDCEGraphRemovals': (['applyDCEGraphRemovals'],),
     'applyImportAndExportNameChanges': (['applyImportAndExportNameChanges'],),