Replace -enable-ossa-modules with -sil-enable-late-ome

Author: meg-gupta

test/SILOptimizer/opaque_values_mandatory.sil

@@ -1,7 +1,7 @@
 // RUN: %target-sil-opt -diagnostics -enable-sil-opaque-values %s | \
 // RUN:     %target-sil-opt -Onone-performance -enable-sil-verify-all \
 // RUN:                     -enable-sil-opaque-values -emit-sorted-sil \
-// RUN:                     -enable-ossa-modules -enable-copy-propagation | \
+// RUN:                     -sil-enable-late-ome -enable-copy-propagation | \
 // RUN:     %FileCheck %s
 
 import Builtin

test/SILOptimizer/sil_combine_apply_ossa.sil

@@ -1,6 +1,4 @@
-// RUN: %target-sil-opt -enable-ossa-modules -enable-sil-verify-all %s -sil-combine -sil-combine-disable-alloc-stack-opts | %FileCheck %s
-
-// -enable-ossa-modules happens to enable copy propagation during sil-combine, which these tests rely on.
+// RUN: %target-sil-opt -sil-enable-late-ome -enable-copy-propagation -enable-sil-verify-all %s -sil-combine -sil-combine-disable-alloc-stack-opts | %FileCheck %s
 
 import Swift
 import Builtin