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/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp
index 9346cf3..b9e3ed9 100644
--- a/lib/CodeGen/BackendUtil.cpp
+++ b/lib/CodeGen/BackendUtil.cpp
@@ -41,7 +41,7 @@
 namespace {
 
 class EmitAssemblyHelper {
-  Diagnostic &Diags;
+  DiagnosticsEngine &Diags;
   const CodeGenOptions &CodeGenOpts;
   const TargetOptions &TargetOpts;
   const LangOptions &LangOpts;
@@ -86,7 +86,7 @@
   bool AddEmitPasses(BackendAction Action, formatted_raw_ostream &OS);
 
 public:
-  EmitAssemblyHelper(Diagnostic &_Diags,
+  EmitAssemblyHelper(DiagnosticsEngine &_Diags,
                      const CodeGenOptions &CGOpts, const TargetOptions &TOpts,
                      const LangOptions &LOpts,
                      Module *M)
@@ -395,7 +395,8 @@
   }
 }
 
-void clang::EmitBackendOutput(Diagnostic &Diags, const CodeGenOptions &CGOpts,
+void clang::EmitBackendOutput(DiagnosticsEngine &Diags,
+                              const CodeGenOptions &CGOpts,
                               const TargetOptions &TOpts,
                               const LangOptions &LOpts,
                               Module *M,