Address Philip's post-commit feedback for r266987. NFC.

llvm-svn: 266998
diff --git a/llvm/lib/IR/Instructions.cpp b/llvm/lib/IR/Instructions.cpp
index 02005cf..4f2fbee 100644
--- a/llvm/lib/IR/Instructions.cpp
+++ b/llvm/lib/IR/Instructions.cpp
@@ -3597,7 +3597,7 @@
   }
 }
 
-bool CmpInst::isTrueWhenOperandsMatch(Predicate Pred1, Predicate Pred2) {
+bool CmpInst::isImpliedTrueByMatchingCmp(Predicate Pred1, Predicate Pred2) {
   // If the predicates match, then we know the first condition implies the
   // second is true.
   if (Pred1 == Pred2)
@@ -3615,7 +3615,7 @@
   return false;
 }
 
-bool CmpInst::isFalseWhenOperandsMatch(Predicate Pred1, Predicate Pred2) {
+bool CmpInst::isImpliedFalseByMatchingCmp(Predicate Pred1, Predicate Pred2) {
   // If an inverted Pred1 matches Pred2, we can infer the second condition is
   // false.
   if (getInversePredicate(Pred1) == Pred2)