Restructure analysis

src/ast.h

Index: src/ast.h
diff --git a/src/ast.h b/src/ast.h
index f28299698a9d6000b42804001f57f5e9dd069967..77b28a9a87ccb0434f5c9a054ee5cb1b04d2da58 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -1225,15 +1225,16 @@ class RegExpTree: public ZoneObject {
 
 class RegExpDisjunction: public RegExpTree {
  public:
-  explicit RegExpDisjunction(ZoneList<RegExpTree*>* nodes) : nodes_(nodes) { }
+  explicit RegExpDisjunction(ZoneList<RegExpTree*>* alternatives)
+    : alternatives_(alternatives) { }
   virtual void* Accept(RegExpVisitor* visitor, void* data);
   virtual RegExpNode* ToNode(RegExpCompiler* compiler,
                              RegExpNode* on_success,
                              RegExpNode* on_failure);
   virtual RegExpDisjunction* AsDisjunction();
-  ZoneList<RegExpTree*>* nodes() { return nodes_; }
+  ZoneList<RegExpTree*>* alternatives() { return alternatives_; }
  private:
-  ZoneList<RegExpTree*>* nodes_;
+  ZoneList<RegExpTree*>* alternatives_;
 };