Fix ~3500 analyser issues

See merge request ryubing/ryujinx!44

src/Ryujinx.Cpu/LightningJit/CodeGen/Arm64/Assembler.cs

@@ -4360,6 +4360,7 @@ namespace Ryujinx.Cpu.LightningJit.CodeGen.Arm64
                     instI |= 1 << 22; // sh flag
                     imm >>= 12;
                 }
+
                 WriteInstructionAuto(instI | (EncodeUImm12(imm, 0) << 10), rd, rn);
             }
             else

src/Ryujinx.Cpu/LightningJit/CodeGen/Arm64/CodeGenCommon.cs

@@ -28,7 +28,7 @@ namespace Ryujinx.Cpu.LightningJit.CodeGen.Arm64
             // Any value AND all ones will be equal itself, so it's effectively a no-op.
             // Any value OR all ones will be equal all ones, so one can just use MOV.
             // Any value XOR all ones will be equal its inverse, so one can just use MVN.
-            if (value == 0 || value == ulong.MaxValue)
+            if (value is 0 or ulong.MaxValue)
             {
                 immN = 0;
                 immS = 0;

src/Ryujinx.Cpu/LightningJit/CodeGen/OperandType.cs

@@ -16,7 +16,7 @@ namespace Ryujinx.Cpu.LightningJit.CodeGen
     {
         public static bool IsInteger(this OperandType type)
         {
-            return type == OperandType.I32 || type == OperandType.I64;
+            return type is OperandType.I32 or OperandType.I64;
         }
 
         public static int GetSizeInBytes(this OperandType type)