Removed debug #define that was accidentally checked in while debugging

the deserializer.

Fixed assertion when "stream jumping" in the deserializer to properly function
when we have reached the end of the stream.

llvm-svn: 44124

llvm/lib/Bitcode/Reader/Deserialize.cpp

@@ -13,8 +13,6 @@
 
 #include "llvm/Bitcode/Deserialize.h"
 
-#define DEBUG_BACKPATCH
-
 #ifdef DEBUG_BACKPATCH
 #include "llvm/Support/Streams.h"
 #endif
@@ -170,7 +168,7 @@ bool Deserializer::JumpTo(const Location& Loc) {
 //  AdvanceStream();
   
 //  assert (AbbrevNo == bitc::ENTER_SUBBLOCK);
-  assert (!BlockStack.empty());
+  assert (!BlockStack.empty() || AtEnd());
     
   uint64_t LastBPos = StreamStart.BitNo;