Rewrite users of Stmt::child_begin/end into for-range loops.

No functionality change intended.

llvm-svn: 241355
diff --git a/clang/lib/StaticAnalyzer/Checkers/MallocSizeofChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/MallocSizeofChecker.cpp
index 296aec6..fb07484 100644
--- a/clang/lib/StaticAnalyzer/Checkers/MallocSizeofChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/MallocSizeofChecker.cpp
@@ -65,10 +65,9 @@
   }
 
   void VisitChildren(const Stmt *S) {
-    for (Stmt::const_child_iterator I = S->child_begin(), E = S->child_end();
-         I!=E; ++I)
-      if (const Stmt *child = *I)
-        VisitChild(S, child);
+    for (const Stmt *Child : S->children())
+      if (Child)
+        VisitChild(S, Child);
   }
 
   TypeCallPair VisitCastExpr(const CastExpr *E) {