bug 4530: Make debug information static to it is preservered during bitcode linking.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79616 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DebugInfo.cpp b/lib/Analysis/DebugInfo.cpp
index fb80b83..03e0886 100644
--- a/lib/Analysis/DebugInfo.cpp
+++ b/lib/Analysis/DebugInfo.cpp
@@ -593,7 +593,7 @@
   
   M.addTypeName("llvm.dbg.compile_unit.type", Init->getType());
   GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
-                                          GlobalValue::LinkOnceAnyLinkage,
+                                          GlobalValue::InternalLinkage,
                                           Init, "llvm.dbg.compile_unit");
   GV->setSection("llvm.metadata");
   return DICompileUnit(GV);
@@ -760,7 +760,7 @@
   
   M.addTypeName("llvm.dbg.subprogram.type", Init->getType());
   GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
-                                          GlobalValue::LinkOnceAnyLinkage,
+                                          GlobalValue::InternalLinkage,
                                           Init, "llvm.dbg.subprogram");
   GV->setSection("llvm.metadata");
   return DISubprogram(GV);