[C++11] Replacing BlockDecl iterators param_begin() and param_end() with iterator_range params(). Updating all of the usages of the iterators with range-based for loops.

llvm-svn: 203250
diff --git a/clang/lib/CodeGen/CGClass.cpp b/clang/lib/CodeGen/CGClass.cpp
index 7add3c2..4cab371 100644
--- a/clang/lib/CodeGen/CGClass.cpp
+++ b/clang/lib/CodeGen/CGClass.cpp
@@ -2163,11 +2163,9 @@
   CallArgs.add(RValue::get(ThisPtr), ThisType);
 
   // Add the rest of the parameters.
-  for (BlockDecl::param_const_iterator I = BD->param_begin(),
-       E = BD->param_end(); I != E; ++I) {
-    ParmVarDecl *param = *I;
+  for (auto param : BD->params())
     EmitDelegateCallArg(CallArgs, param, param->getLocStart());
-  }
+
   assert(!Lambda->isGenericLambda() && 
             "generic lambda interconversion to block not implemented");
   EmitForwardingCallToLambda(Lambda->getLambdaCallOperator(), CallArgs);