Change a whole lot of diagnostics to take QualType's directly 
instead of converting them to strings first.  This also fixes a
bunch of minor inconsistencies in the diagnostics emitted by clang
and adds a bunch of FIXME's to DiagnosticKinds.def.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59948 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaInherit.cpp b/lib/Sema/SemaInherit.cpp
index 398f388..a02dd1e 100644
--- a/lib/Sema/SemaInherit.cpp
+++ b/lib/Sema/SemaInherit.cpp
@@ -205,7 +205,7 @@
   }
   
   Diag(Loc, diag::err_ambiguous_derived_to_base_conv)
-    << Derived.getAsString() << Base.getAsString() << PathDisplayStr << Range;
+    << Derived << Base << PathDisplayStr << Range;
   return true;
 }