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/Rewrite/FixItRewriter.cpp b/lib/Rewrite/FixItRewriter.cpp
index 5820969..9d42ac2 100644
--- a/lib/Rewrite/FixItRewriter.cpp
+++ b/lib/Rewrite/FixItRewriter.cpp
@@ -141,7 +141,7 @@
 }
 
 /// \brief Emit a diagnostic via the adapted diagnostic client.
-void FixItRewriter::Diag(FullSourceLoc Loc, unsigned DiagID) {
+void FixItRewriter::Diag(SourceLocation Loc, unsigned DiagID) {
   // When producing this diagnostic, we temporarily bypass ourselves,
   // clear out any current diagnostic, and let the downstream client
   // format the diagnostic.
diff --git a/lib/Rewrite/HTMLRewrite.cpp b/lib/Rewrite/HTMLRewrite.cpp
index b461df4..e6b9aa3 100644
--- a/lib/Rewrite/HTMLRewrite.cpp
+++ b/lib/Rewrite/HTMLRewrite.cpp
@@ -486,7 +486,8 @@
 
   // Temporarily change the diagnostics object so that we ignore any generated
   // diagnostics from this pass.
-  Diagnostic TmpDiags(new IgnoringDiagClient);
+  Diagnostic TmpDiags(PP.getDiagnostics().getDiagnosticIDs(),
+                      new IgnoringDiagClient);
 
   // FIXME: This is a huge hack; we reuse the input preprocessor because we want
   // its state, but we aren't actually changing it (we hope). This should really