Run all managed code in a subthread. Re-enable GC threaded finalisation.

Run all managed code in a subthread.  Re-enable GC threaded finalisation.
Fixes bugs 34263 and 31333.

(All tests still behave the same way - 4 fails)

2003-01-23  Dick Porter  <dick@ximian.com>

	* threads.c (start_wrapper): Create a Thread object if needed, so
	the Main() thread can do the class initialisation in a subthread
	that has been set up to allow managed code execution.

	Pass the thread ID instead of the MonoThread pointer to the thread
	start and attach callbacks.  This change is required, because the
	jit thread start callback must be called _before_ the Thread
	object can be created.

	(mono_thread_init): Removed much object creation code that is no
	longer needed.  No managed code is called from here now.

	* object.c (mono_runtime_exec_managed_code): Create a subthread
	for Main, and call back to the runtime to use it.
	Set the exit code when Main exits.

	* gc.c: Make sure domain finalisation happens in a subthread.
	Re-enable threaded GC, fixing bug 31333 (again).

	* environment.c: System.Environment internall calls (so far just
	ExitCode is here, the others are still in icall.c)

	* appdomain.c (mono_runtime_cleanup): All threads running managed
	code should have finished before mono_runtime_cleanup() is
	reached, so no need to clean up threads.

2003-01-23  Dick Porter  <dick@ximian.com>

	* mono.c: Use mono_runtime_exec_managed_code() to run all managed
	code in a subthread.

	* jit.c: Changed thread start and attach callbacks to pass the
	thread ID, not the MonoThread pointer.  Arrange that managed code
	execution will fail an assertion in the main thread, just to be
	sure.

2003-01-23  Dick Porter  <dick@ximian.com>

	* interp.c: Use mono_runtime_exec_managed_code() to run all
	managed code in a subthread.

svn path=/trunk/mono/; revision=10838