Move the Attributes::Builder outside of the Attributes class and into its own class named AttrBuilder. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165961 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TargetInfo.cpp b/lib/CodeGen/TargetInfo.cpp
index dca335d..75cc5a3 100644
--- a/lib/CodeGen/TargetInfo.cpp
+++ b/lib/CodeGen/TargetInfo.cpp
@@ -968,7 +968,7 @@
       llvm::Function *Fn = cast<llvm::Function>(GV);
 
       // Now add the 'alignstack' attribute with a value of 16.
-      llvm::Attributes::Builder B;
+      llvm::AttrBuilder B;
       B.addStackAlignmentAttr(16);
       Fn->addAttribute(llvm::AttrListPtr::FunctionIndex,
                        llvm::Attributes::get(CGM.getLLVMContext(), B));