Refactoring of Diagnostic class.

-Move the stuff of Diagnostic related to creating/querying diagnostic IDs into a new DiagnosticIDs class.
-DiagnosticIDs can be shared among multiple Diagnostics for multiple translation units.
-The rest of the state in Diagnostic object is considered related and tied to one translation unit.
-Have Diagnostic point to the SourceManager that is related with. Diagnostic can now accept just a
   SourceLocation instead of a FullSourceLoc.
-Reflect the changes to various interfaces.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119730 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index 29276c3..cc5b198 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -1529,7 +1529,7 @@
   assert(Diag && "Fall through without a diagnostic?");
   unsigned DiagID = CGM.getDiags().getCustomDiagID(Diagnostic::Error,
                                "debug information for %0 is not yet supported");
-  CGM.getDiags().Report(FullSourceLoc(), DiagID)
+  CGM.getDiags().Report(DiagID)
     << Diag;
   return llvm::DIType();
 }