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/Analysis/AnalysisContext.cpp b/lib/Analysis/AnalysisContext.cpp
index d9ac1de..5233d3b 100644
--- a/lib/Analysis/AnalysisContext.cpp
+++ b/lib/Analysis/AnalysisContext.cpp
@@ -273,7 +273,7 @@
   }
 
   void VisitStmt(Stmt *S) {
-    for (Stmt::child_iterator I = S->child_begin(), E = S->child_end();I!=E;++I)
+    for (Stmt::child_range I = S->children(); I; ++I)
       if (Stmt *child = *I)
         Visit(child);
   }