Use llvm::reverse to make a bunch of loops use foreach. NFC.

In llvm commit r243581, a reverse range adapter was added which allows
us to change code such as

  for (auto I = Fields.rbegin(), E = Fields.rend(); I != E; ++I) {

in to

  for (const FieldDecl *I : llvm::reverse(Fields))

This commit changes a few of the places in clang which are eligible to use
this new adapter.

llvm-svn: 243663

1 files changed, 2 insertions, 3 deletions

diff --git a/clang/lib/Analysis/CFG.cpp b/clang/lib/Analysis/CFG.cpp
index 07b80edfe69..3a358f91b09 100644
--- a/clang/lib/Analysis/CFG.cpp
+++ b/clang/lib/Analysis/CFG.cpp
@@ -994,9 +994,8 @@ std::unique_ptr<CFG> CFGBuilder::buildCFG(const Decl *D, Stmt *Statement) {
 
   // For C++ constructor add initializers to CFG.
   if (const CXXConstructorDecl *CD = dyn_cast_or_null<CXXConstructorDecl>(D)) {
-    for (CXXConstructorDecl::init_const_reverse_iterator I = CD->init_rbegin(),
-        E = CD->init_rend(); I != E; ++I) {
-      B = addInitializer(*I);
+    for (auto *I : llvm::reverse(CD->inits())) {
+      B = addInitializer(I);
       if (badCFG)
         return nullptr;
     }