Rename Diagnostic to DiagnosticsEngine as per issue 5397


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140478 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index fed79db..bdb0b57 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -1590,7 +1590,7 @@
   }
   
   assert(Diag && "Fall through without a diagnostic?");
-  unsigned DiagID = CGM.getDiags().getCustomDiagID(Diagnostic::Error,
+  unsigned DiagID = CGM.getDiags().getCustomDiagID(DiagnosticsEngine::Error,
                                "debug information for %0 is not yet supported");
   CGM.getDiags().Report(DiagID)
     << Diag;