[ownership] Strip ownership before running lowering passes in the repl.

This fixes most of the interpreter tests for ownership.

Author: gottesmm

lib/Immediate/REPL.cpp

@@ -876,6 +876,7 @@ class REPLEnvironment {
       // non-whole-module generation.
       sil = performSILGeneration(*M->getFiles().front(), CI.getSILOptions());
       runSILDiagnosticPasses(*sil);
+      runSILOwnershipEliminatorPass(*sil);
       runSILLoweringPasses(*sil);
     }