Renaming type classes as discussed:

runtime/vm/ast_printer.cc

Index: runtime/vm/ast_printer.cc
===================================================================
--- runtime/vm/ast_printer.cc	(revision 1948)
+++ runtime/vm/ast_printer.cc	(working copy)
@@ -84,7 +84,8 @@
   OS::Print("(%s %s%s '%s' ",
             node->Name(),
             field.is_final() ? "final " : "",
-            String::Handle(Type::Handle(field.type()).Name()).ToCString(),
+            String::Handle(AbstractType::Handle(field.type()).Name()).
+                ToCString(),
             String::Handle(field.name()).ToCString());
   node->VisitChildren(this);
   OS::Print(")");
@@ -123,7 +124,7 @@
 
 
 void AstPrinter::VisitTypeNode(TypeNode* node) {
-  const Type& type = node->type();
+  const AbstractType& type = node->type();
   OS::Print("'%s'", String::Handle(type.Name()).ToCString());
 }
 
@@ -131,7 +132,7 @@
 void AstPrinter::VisitAssignableNode(AssignableNode* node) {
   OS::Print("(assignable ");
   node->expr()->Visit(this);
-  const Type& type = node->type();
+  const AbstractType& type = node->type();
   const String& dst_name = node->dst_name();
   OS::Print(" to type '%s' of '%s')",
             String::Handle(type.Name()).ToCString(),