Rename getBaseClassOffset to getBaseClassOffsetInBits and introduce a getBaseClassOffset which returns the offset in CharUnits. Do the same thing for getVBaseClassOffset.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117881 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGCXX.cpp b/lib/CodeGen/CGCXX.cpp
index 15d1469..98ccc76 100644
--- a/lib/CodeGen/CGCXX.cpp
+++ b/lib/CodeGen/CGCXX.cpp
@@ -103,7 +103,7 @@
 
   // If the base is at a non-zero offset, give up.
   const ASTRecordLayout &ClassLayout = Context.getASTRecordLayout(Class);
-  if (ClassLayout.getBaseClassOffset(UniqueBase) != 0)
+  if (ClassLayout.getBaseClassOffsetInBits(UniqueBase) != 0)
     return true;
 
   return TryEmitDefinitionAsAlias(GlobalDecl(D, Dtor_Base),