Fix issue 20476: creating multiple LocalVariables with same name (finally_ret_val35), confuses the …

runtime/vm/ast.h

Index: runtime/vm/ast.h
===================================================================
--- runtime/vm/ast.h	(revision 39201)
+++ runtime/vm/ast.h	(working copy)
@@ -524,7 +524,6 @@
       : AstNode(token_pos),
         value_(new LiteralNode(token_pos, Instance::ZoneHandle())),
         inlined_finally_list_(),
-        saved_return_value_var_(NULL),
         is_regular_return_(true) { }
   // Return from a non-void function.
   ReturnNode(intptr_t token_pos,
@@ -532,7 +531,6 @@
       : AstNode(token_pos),
         value_(value),
         inlined_finally_list_(),
-        saved_return_value_var_(NULL),
         is_regular_return_(true) {
     ASSERT(value_ != NULL);
   }
@@ -549,13 +547,6 @@
     inlined_finally_list_.Add(finally_node);
   }
 
-  LocalVariable* saved_return_value_var() const {
-    return saved_return_value_var_;
-  }
-  void set_saved_return_value_var(LocalVariable* var) {
-    saved_return_value_var_ = var;
-  }
-
   virtual void VisitChildren(AstNodeVisitor* visitor) const {
     if (value() != NULL) {
       value()->Visit(visitor);
@@ -573,7 +564,6 @@
  private:
   AstNode* value_;
   GrowableArray<InlinedFinallyNode*> inlined_finally_list_;
-  LocalVariable* saved_return_value_var_;
   LocalScope* scope_;
   bool is_regular_return_;