Move 'ret' instruction generation inside GenerateFrameExit.

Change-Id: I0c594d9a2356a006a5ce8dfd41d307cf7c3704ba
diff --git a/compiler/optimizing/optimizing_cfi_test.cc b/compiler/optimizing/optimizing_cfi_test.cc
index 6d986ba..b2c13ad 100644
--- a/compiler/optimizing/optimizing_cfi_test.cc
+++ b/compiler/optimizing/optimizing_cfi_test.cc
@@ -73,7 +73,7 @@
     code_gen->ComputeSpillMask();
     code_gen->SetFrameSize(frame_size);
     code_gen->GenerateFrameEntry();
-    code_gen->GetInstructionVisitor()->VisitReturnVoid(new (&allocator) HReturnVoid());
+    code_gen->GenerateFrameExit();
     // Get the outputs.
     InternalCodeAllocator code_allocator;
     code_gen->Finalize(&code_allocator);