Synced basic_debugger_test start on new "debugger initialized" message.

runtime/vm/debugger.cc

Index: runtime/vm/debugger.cc
===================================================================
--- runtime/vm/debugger.cc	(revision 20932)
+++ runtime/vm/debugger.cc	(working copy)
@@ -1576,6 +1576,9 @@
 
   // Signal isolate creation event.
   SignalIsolateEvent(Debugger::kIsolateCreated);
+  if (FLAG_verbose_debug) {
+    OS::Print("Debugger initialized\n");

[hausner, 2013/04/04 23:17:45]

I think the handshake should even work without this message, since there is
stdout output when the debugger reaches the breakpoint at the beginning of
main().

[Tom Ball, 2013/04/04 23:24:56]

I tried removing it and the test hangs. You're right that once the test starts
running then stdout messages are printed, but the race condition we're facing is
that the test starts running before the debuggee is ready.

+  }
 }