Give some convenient idiomatic accessors to Stmt::child_range and
Stmt::const_child_range, then make a bunch of places use them instead
of the individual iterator accessors.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125450 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/JumpDiagnostics.cpp b/lib/Sema/JumpDiagnostics.cpp
index bbe7bd5..bd6b48a 100644
--- a/lib/Sema/JumpDiagnostics.cpp
+++ b/lib/Sema/JumpDiagnostics.cpp
@@ -221,8 +221,7 @@
     break;
   }
 
-  for (Stmt::child_iterator CI = S->child_begin(), E = S->child_end(); CI != E;
-       ++CI) {
+  for (Stmt::child_range CI = S->children(); CI; ++CI) {
     if (SkipFirstSubStmt) {
       SkipFirstSubStmt = false;
       continue;