Revert of Non-pattern rewriting revisited

src/ast/ast-numbering.cc

Index: src/ast/ast-numbering.cc
diff --git a/src/ast/ast-numbering.cc b/src/ast/ast-numbering.cc
index 272f9bde1128b64e4e7fd0615cd65a837f49f3c6..9b49e300cee3a7de662e0b24cb787f73c680bec5 100644
--- a/src/ast/ast-numbering.cc
+++ b/src/ast/ast-numbering.cc
@@ -554,10 +554,10 @@
 }
 
 
-void AstNumberingVisitor::VisitRewritableExpression(
-    RewritableExpression* node) {
-  IncrementNodeCount();
-  node->set_base_id(ReserveIdRange(RewritableExpression::num_ids()));
+void AstNumberingVisitor::VisitRewritableAssignmentExpression(
+    RewritableAssignmentExpression* node) {
+  IncrementNodeCount();
+  node->set_base_id(ReserveIdRange(RewritableAssignmentExpression::num_ids()));
   Visit(node->expression());
 }