[InstCombine] name change: foldShuffledBinop -> foldVectorBinop; NFC

This function will deal with more than shuffles with D50992, and I 
have another potential per-element fold that could live here.

llvm-svn: 343692
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
index 8980638..a6280ec 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
@@ -1535,7 +1535,7 @@
   if (SimplifyAssociativeOrCommutative(I))
     return &I;
 
-  if (Instruction *X = foldShuffledBinop(I))
+  if (Instruction *X = foldVectorBinop(I))
     return X;
 
   // See if we can simplify any instructions used by the instruction whose sole
@@ -2134,7 +2134,7 @@
   if (SimplifyAssociativeOrCommutative(I))
     return &I;
 
-  if (Instruction *X = foldShuffledBinop(I))
+  if (Instruction *X = foldVectorBinop(I))
     return X;
 
   // See if we can simplify any instructions used by the instruction whose sole
@@ -2602,7 +2602,7 @@
   if (SimplifyAssociativeOrCommutative(I))
     return &I;
 
-  if (Instruction *X = foldShuffledBinop(I))
+  if (Instruction *X = foldVectorBinop(I))
     return X;
 
   if (Instruction *NewXor = foldXorToXor(I, Builder))