[move-only] Integrate BorrowToDestructureTransform into the AddressChecker so we handle load [copy] switch_enum.

lib/SILOptimizer/Mandatory/MoveOnlyDiagnostics.cpp

@@ -102,6 +102,7 @@ void DiagnosticEmitter::emitCheckerDoesntUnderstandDiagnostic(
              diag::sil_moveonlychecker_not_understand_moveonly);
   }
   registerDiagnosticEmitted(markedValue);
+  emittedCheckerDoesntUnderstandDiagnostic = true;
 }
 
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