Fix the definition of kIllegalPort in dart_api.h.

runtime/bin/directory.cc

Index: runtime/bin/directory.cc
diff --git a/runtime/bin/directory.cc b/runtime/bin/directory.cc
index c85d181ae5eb04a584a9046f77c2a0a93283a5bb..8455c39fb5e345fa1b2da7fd2b25cb63ccbbd7a9 100644
--- a/runtime/bin/directory.cc
+++ b/runtime/bin/directory.cc
@@ -259,16 +259,16 @@ Dart_Port Directory::GetServicePort() {
     service_ports_ = new Dart_Port[service_ports_size_];
     service_ports_index_ = 0;
     for (int i = 0; i < service_ports_size_; i++) {
-      service_ports_[i] = kIllegalPort;
+      service_ports_[i] = ILLEGAL_PORT;
     }
   }
 
   Dart_Port result = service_ports_[service_ports_index_];
-  if (result == kIllegalPort) {
+  if (result == ILLEGAL_PORT) {
     result = Dart_NewNativePort("DirectoryService",
                                 DirectoryService,
                                 true);
-    ASSERT(result != kIllegalPort);
+    ASSERT(result != ILLEGAL_PORT);
     service_ports_[service_ports_index_] = result;
   }
   service_ports_index_ = (service_ports_index_ + 1) % service_ports_size_;
@@ -280,7 +280,7 @@ void FUNCTION_NAME(Directory_NewServicePort)(Dart_NativeArguments args) {
   Dart_EnterScope();
   Dart_SetReturnValue(args, Dart_Null());
   Dart_Port service_port = Directory::GetServicePort();
-  if (service_port != kIllegalPort) {
+  if (service_port != ILLEGAL_PORT) {
     // Return a send port for the service port.
     Dart_Handle send_port = Dart_NewSendPort(service_port);
     Dart_SetReturnValue(args, send_port);