Added Serializer::EmitRef to deal with emitting arbitrary references.

Modified Serializer::EmitPtr to handle const pointers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43565 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Bitcode/Writer/Serialize.cpp

@@ -57,7 +57,7 @@ void Serializer::EmitCStr(const char* s) {
   EmitCStr(s,s+strlen(s));
 }
 
-unsigned Serializer::getPtrId(void* ptr) {
+unsigned Serializer::getPtrId(const void* ptr) {
   if (!ptr)
     return 0;