Fix NaN checker pass that can't work with intrinsic isnan (as it require /Gic)

ScriptableRenderPipeline/Core/CoreRP/ShaderLibrary/Common.hlsl

     return faceID;
 }
 #endif // INTRINSIC_CUBEMAP_FACE_ID
+
+// Intrinsic isnan can't be used because it require /Gic to be enabled on fxc that we can't do. So use IsNAN instead
+bool IsNAN(float n)
+{
+    return (n < 0.0 || n > 0.0 || n == 0.0) ? false : true;
+}
+
+bool IsNAN(float2 v)
+{
+    return (IsNAN(v.x) || IsNAN(v.y)) ? true : false;
+}
+
+bool IsNAN(float3 v)
+{
+    return (IsNAN(v.x) || IsNAN(v.y) || IsNAN(v.z)) ? true : false;
+}
+
+bool IsNAN(float4 v)
+{
+    return (IsNAN(v.x) || IsNAN(v.y) || IsNAN(v.z) || IsNAN(v.w)) ? true : false;
+}
 
 // ----------------------------------------------------------------------------
 // Common math functions

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Debug/DebugFullScreen.shader

                 if (_FullScreenDebugMode == FULLSCREENDEBUGMODE_NAN_TRACKER)
                 {
                     float4 color = SAMPLE_TEXTURE2D(_DebugFullScreenTexture, sampler_DebugFullScreenTexture, input.texcoord);
-
-                    if (any(isnan(color)) || any(isinf(color)))
+                    
+                    if (IsNAN(color) || any(isinf(color)))
                     {
                         color = float4(1.0, 0.0, 0.0, 1.0);
                     }