[LAA] Fix confusing debug message

This message used to be correct, when all we cared about was whether the
dependence was safe (i.e. NoDep) or unsafe.  With the current more
precise characterization, this is a forward dep.

llvm-svn: 268695

llvm/lib/Analysis/LoopAccessAnalysis.cpp

@@ -1217,7 +1217,7 @@ MemoryDepChecker::isDependent(const MemAccessInfo &A, unsigned AIdx,
       return Dependence::ForwardButPreventsForwarding;
     }
 
-    DEBUG(dbgs() << "LAA: Dependence is negative: NoDep\n");
+    DEBUG(dbgs() << "LAA: Dependence is negative\n");
     return Dependence::Forward;
   }