Fix some minor type conversion warnings.

Core/CwCheat.h

@@ -36,7 +36,7 @@ private:
 
 	bool cheatsOn;
 	std::vector<std::string> codes;
-	int currentCode;
+	size_t currentCode;
 	bool exit2;
 	std::vector<std::string> parts;
 };

Core/HLE/__sceAudio.cpp

@@ -122,7 +122,7 @@ u32 __AudioEnqueue(AudioChannel &chan, int chanNum, bool blocking)
 	if (chan.sampleQueue.size() > chan.sampleCount * 2 * chanQueueMaxSizeFactor || chan.sampleAddress == 0) {
 		if (blocking) {
 			// TODO: Regular multichannel audio seems to block for 64 samples less?  Or enqueue the first 64 sync?
-			int blockSamples = chan.sampleQueue.size() / 2 / chanQueueMinSizeFactor;
+			int blockSamples = (int)chan.sampleQueue.size() / 2 / chanQueueMinSizeFactor;
 
 			AudioChannelWaitInfo waitInfo = {__KernelGetCurThread(), blockSamples};
 			chan.waitingThreads.push_back(waitInfo);

Core/HLE/sceAtrac.cpp

@@ -554,7 +554,7 @@ u32 sceAtracDecodeData(int atracID, u32 outAddr, u32 numSamplesAddr, u32 finishF
 				int gotsize = atrac->sampleQueue.pop_front(buf, ATRAC_MAX_SAMPLES * sizeof(s16) * atrac->atracChannels);
 				numSamples = gotsize / sizeof(s16) / atrac->atracChannels;
 				s16* in = (s16*)buf;
-				for (int i = 0; i < numSamples; i++) {
+				for (u32 i = 0; i < numSamples; i++) {
 					s16 sampleL = *in++;
 					s16 sampleR = sampleL;
 					if (atrac->atracChannels == 2)

Windows/WndMainWindow.cpp

@@ -202,7 +202,7 @@ namespace MainWindow
 	void setFpsLimit(int fps) {
 		g_Config.iFpsLimit = fps;
 	}
-	void enableCheats(int cheats){
+	void enableCheats(bool cheats){
 		g_Config.bEnableCheats = cheats;
 	}