Introduce a new intermediate AST node for encapsulating the...

src/prettyprinter.cc

Index: src/prettyprinter.cc
===================================================================
--- src/prettyprinter.cc	(revision 5326)
+++ src/prettyprinter.cc	(working copy)
@@ -376,6 +376,11 @@
 }
 
 
+void PrettyPrinter::VisitIncrementOperation(IncrementOperation* node) {
+  UNREACHABLE();
+}
+
+
 void PrettyPrinter::VisitCountOperation(CountOperation* node) {
   Print("(");
   if (node->is_prefix()) Print("%s", Token::String(node->op()));
@@ -1077,6 +1082,11 @@
 }
 
 
+void AstPrinter::VisitIncrementOperation(IncrementOperation* node) {
+  UNREACHABLE();
+}
+
+
 void AstPrinter::VisitCountOperation(CountOperation* node) {
   EmbeddedVector<char, 128> buf;
   if (node->type()->IsKnown()) {
@@ -1477,6 +1487,11 @@
 }
 
 
+void JsonAstBuilder::VisitIncrementOperation(IncrementOperation* expr) {
+  UNREACHABLE();
+}
+
+
 void JsonAstBuilder::VisitCountOperation(CountOperation* expr) {
   TagScope tag(this, "CountOperation");
   {