Object: Add some types to SymbolRef::Type.

Some of these can be true at the same time and there are a lot to add,
so this should be turned into a bitfield. Some of the other accessors
should probably be folded into this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142318 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Object/ObjectFile.h

@@ -166,9 +166,11 @@ public:
   }
 
   enum Type {
-    ST_Function,
     ST_Data,
+    ST_Debug,
     ST_External,    // Defined in another object file
+    ST_File,
+    ST_Function,
     ST_Other
   };