Directly check PEB for IsDebuggerAttached

Add constexpr getters to magicdiv class so it can be used from jitted x64/dxbc
Track the guest return address as well for guest/host sync, if multiple entries have the same guest stack find the first one with a matching guest retaddr. this fixes epic mickey 2 (which the previous guest-stack change had allowed to go ingame for a bit) and potentially also a crash in fable3.
Break if under debugger when stackpoints are overflowed

Add much more useful output for host exceptions, print out xenia_canary.exe relative offsets if exception is in module, formatmessage for ntstatus/win32err, strerror

Minor d3d12 microoptimization, instead of doing SetEventOnCompletion + WaitForSingleObject do SetEventOnCompletion w/ nullptr so that the wait happens in kernel mode, avoiding two extra context switches

add unimplemented kernel functions:
ExAllocatePoolWithTag
ObReferenceObject

ObDereferenceObject has no return value.
Log a message when ObDereferenceObject/Reference receive unregistered guest kernel objects
gave ObLookupThreadByThreadId its correct error status
hoist object_types initialization out of ObReferenceObjectByHandle
Fix out parameter values on error for a few kernel funcs
add note about msr to KeSetCurrentStackPointers
add X_STATUS_OBJECT_TYPE_MISMATCH check for xeNtSetEvent
add msr_mask field to X_KPCR

src/xenia/kernel/xam/xam_task.cc

@@ -37,14 +37,30 @@ struct XTASK_MESSAGE {
   be<uint32_t> unknown_14;
   be<uint32_t> task_handle;
 };
+
+struct XAM_TASK_ARGS {
+  be<uint32_t> value1;
+  be<uint32_t> value2;
+  // i think there might be another value here, it might be padding
+};
 static_assert_size(XTASK_MESSAGE, 0x1C);
 
 dword_result_t XamTaskSchedule_entry(lpvoid_t callback,
                                      pointer_t<XTASK_MESSAGE> message,
-                                     lpdword_t unknown, lpdword_t handle_ptr) {
+                                     dword_t optional_ptr, lpdword_t handle_ptr,
+                                     const ppc_context_t& ctx) {
   // TODO(gibbed): figure out what this is for
   *handle_ptr = 12345;
 
+  if (optional_ptr) {
+    auto option = ctx->TranslateVirtual<XAM_TASK_ARGS*>(optional_ptr);
+
+    auto v1 = option->value1;
+    auto v2 = option->value2; //typically 0?
+
+    XELOGI("Got xam task args: v1 = {:08X}, v2 = {:08X}", v1, v2);
+  }
+
   uint32_t stack_size = kernel_state()->GetExecutableModule()->stack_size();
 
   // Stack must be aligned to 16kb pages