Fix examples for r140478.  PR11021.

llvm-svn: 140618
diff --git a/clang/examples/clang-interpreter/main.cpp b/clang/examples/clang-interpreter/main.cpp
index 8dfe4c9..8eca445 100644
--- a/clang/examples/clang-interpreter/main.cpp
+++ b/clang/examples/clang-interpreter/main.cpp
@@ -74,7 +74,7 @@
     new TextDiagnosticPrinter(llvm::errs(), DiagnosticOptions());
 
   llvm::IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
-  Diagnostic Diags(DiagID, DiagClient);
+  DiagnosticsEngine Diags(DiagID, DiagClient);
   Driver TheDriver(Path.str(), llvm::sys::getHostTriple(),
                    "a.out", /*IsProduction=*/false, /*CXXIsProduction=*/false,
                    Diags);