Switch to using a numeric id for anchors.

llvm-svn: 26598
diff --git a/llvm/lib/Transforms/IPO/Internalize.cpp b/llvm/lib/Transforms/IPO/Internalize.cpp
index 2f2f06b..4bfc5a2 100644
--- a/llvm/lib/Transforms/IPO/Internalize.cpp
+++ b/llvm/lib/Transforms/IPO/Internalize.cpp
@@ -112,9 +112,10 @@
   ExternalNames.insert("llvm.used");
   
   // Never internalize anchors used by the debugger, else the debugger won't
-  // find them.
-  ExternalNames.insert("llvm.dbg.translation_units");
-  ExternalNames.insert("llvm.dbg.globals");
+  // find them.  (see MachineDebugInfo.)
+  ExternalNames.insert("llvm.dbg.compile_units");
+  ExternalNames.insert("llvm.dbg.global_variables");
+  ExternalNames.insert("llvm.dbg.subprograms");
       
   // Mark all global variables with initializers as internal as well.
   for (Module::global_iterator I = M.global_begin(), E = M.global_end();