Change the diagnostics interface to take an array of pointers to 
strings instead of array of strings.  This reduces string copying
in some not-very-important cases, but paves the way for future 
improvements.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59494 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index a101e38..d7d7329 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -108,8 +108,9 @@
                                                "cannot codegen this %0 yet");
   SourceRange Range = S->getSourceRange();
   std::string Msg = Type;
+  const std::string *Strs[] = { &Msg };
   getDiags().Report(Context.getFullLoc(S->getLocStart()), DiagID,
-                    &Msg, 1, &Range, 1);
+                    Strs, 1, &Range, 1);
 }
 
 /// ErrorUnsupported - Print out an error that codegen doesn't support the
@@ -121,8 +122,8 @@
   unsigned DiagID = getDiags().getCustomDiagID(Diagnostic::Error, 
                                                "cannot codegen this %0 yet");
   std::string Msg = Type;
-  getDiags().Report(Context.getFullLoc(D->getLocation()), DiagID,
-                    &Msg, 1);
+  const std::string *Strs[] = { &Msg };
+  getDiags().Report(Context.getFullLoc(D->getLocation()), DiagID, Strs, 1);
 }
 
 /// setGlobalVisibility - Set the visibility for the given LLVM