Use the range variant of count_if instead of unpacking begin/end

No functionality change is intended.

llvm-svn: 278474
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp
index c341794..308d974 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -1857,7 +1857,7 @@
     auto *BB = CLI.CS->getParent();
     bool PreferIndirect =
         Subtarget->isThumb() && MF.getFunction()->optForMinSize() &&
-        std::count_if(GV->user_begin(), GV->user_end(), [&BB](const User *U) {
+        count_if(GV->users(), [&BB](const User *U) {
           return isa<Instruction>(U) && cast<Instruction>(U)->getParent() == BB;
         }) > 2;