Use ArrayRef in ConstantFoldInstOperands and ConstantFoldCall.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135477 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp
index 25eed51..d817b6e 100644
--- a/lib/Transforms/IPO/GlobalOpt.cpp
+++ b/lib/Transforms/IPO/GlobalOpt.cpp
@@ -2465,8 +2465,7 @@
 
       if (Callee->isDeclaration()) {
         // If this is a function we can constant fold, do it.
-        if (Constant *C = ConstantFoldCall(Callee, Formals.data(),
-                                           Formals.size())) {
+        if (Constant *C = ConstantFoldCall(Callee, Formals)) {
           InstResult = C;
         } else {
           return false;