Improve some scheduling issues, deny many waits inside interrupts

[unknownbrackets]

This fixes several things:

• If a thread was terminated/ended while waiting, it could've been "brought back to life." I found this mainly when force-killing threads for debugging purposes.
• sceKernelDisableSubIntr() was not actually disabling anything (fixes intr/vblank/vblank.)
• Better error codes when inside an interrupt or they're disabled, and don't do things in these cases that shouldn't be done.

I only tested a handful of games but they all work fine still. I kinda expect this to break things and fix things... but it is all per tests.

-[Unknown]

[daniel229]

Great,It fixed digimon advanture,before was trapped behind the exit gate.

[daniel229]

Fixed corrupt graphic in Frontier Gate Boost+,and the game goes ingame again recently.

[hrydgard]

That still looks a little broken though :)

[daniel229]

Try again the game,some time still like that before.

sometime like this

[unknownbrackets]

Hmm, interesting if this changed its behavior... or was it just random before and it's still random?

-[Unknown]

[daniel229]

just tested, It's random before,still corrupt everywhere,and random hang.

AskaMainThre W[HLE]: F:\ppsspp\Core/HLE/sceKernel.h:454 Kernel: Bad object handle 0 (00000000)

[daniel229]

digimon not fixed, it's still random?

[Blackwargreymon]

In Digimon Adventure the problem it's still random.
1.- USE save states.
2.- Keep pressing the TAB key while running with agumon and you have 25%-60% chances to load the next area
3.- If you fail, load and repeat.

http://forums.ppsspp.org/showthread.php?tid=2809&pid=45572#pid45572