Merge pull request #1588 from rohit-n/zero-nullptr

Silence a few "zero as null pointer" warnings.

Source/Core/Common/ArmEmitter.h

@@ -348,7 +348,7 @@ protected:
 	inline void Write32(u32 value) {*(u32*)code = value; code+=4;}
 
 public:
-	ARMXEmitter() : code(0), startcode(0), lastCacheFlushEnd(0) {
+	ARMXEmitter() : code(nullptr), startcode(nullptr), lastCacheFlushEnd(nullptr) {
 		condition = CC_AL << 28;
 	}
 	ARMXEmitter(u8 *code_ptr) {

Source/Core/Common/GekkoDisassembler.cpp

@@ -2285,7 +2285,7 @@ const char* GekkoDisassembler::GetGPRName(u32 index)
 	if (index < 32)
 		return gprnames[index];
 
-	return 0;
+	return nullptr;
 }
 
 static const char* fprnames[] =
@@ -2301,5 +2301,5 @@ const char* GekkoDisassembler::GetFPRName(u32 index)
 	if (index < 32)
 		return fprnames[index];
 
-	return 0;
+	return nullptr;
 }

Source/Core/Core/PowerPC/JitArm32/JitFPRCache.cpp

@@ -9,7 +9,7 @@ using namespace ArmGen;
 
 ArmFPRCache::ArmFPRCache()
 {
-	emit = 0;
+	emit = nullptr;
 }
 
 void ArmFPRCache::Init(ARMXEmitter *emitter)

Source/Core/Core/PowerPC/JitArm32/JitRegCache.cpp

@@ -9,7 +9,7 @@ using namespace ArmGen;
 
 ArmRegCache::ArmRegCache()
 {
-	emit = 0;
+	emit = nullptr;
 }
 
 void ArmRegCache::Init(ARMXEmitter *emitter)