Privatize StructLayout::MemberOffsets, adding an accessor


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34156 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ConstantFolding.cpp b/lib/Analysis/ConstantFolding.cpp
index 25a64ab..1515301 100644
--- a/lib/Analysis/ConstantFolding.cpp
+++ b/lib/Analysis/ConstantFolding.cpp
@@ -70,7 +70,7 @@
       
       if (const StructType *ST = dyn_cast<StructType>(*GTI)) {
         // N = N + Offset
-        Offset += TD.getStructLayout(ST)->MemberOffsets[CI->getZExtValue()];
+        Offset += TD.getStructLayout(ST)->getElementOffset(CI->getZExtValue());
       } else {
         const SequentialType *ST = cast<SequentialType>(*GTI);
         Offset += TD.getTypeSize(ST->getElementType())*CI->getSExtValue();