Handle NaN and Infinity in CSharpHelper.Literal(float)

src/EFCore.Design/Design/Internal/CSharpHelper.cs

@@ -505,7 +505,24 @@ private static string EnsureDecimalPlaces(double number)
     ///     doing so can result in application failures when updating to a new Entity Framework Core release.
     /// </summary>
     public virtual string Literal(float value)
-        => value.ToString(CultureInfo.InvariantCulture) + "f";
+    {
+        if (float.IsNaN(value))
+        {
+            return $"float.{nameof(float.NaN)}";
+        }
+
+        if (float.IsNegativeInfinity(value))
+        {
+            return $"float.{nameof(float.NegativeInfinity)}";
+        }
+
+        if (float.IsPositiveInfinity(value))
+        {
+            return $"float.{nameof(float.PositiveInfinity)}";
+        }
+
+        return value.ToString(CultureInfo.InvariantCulture) + "f";
+    }
 
     /// <summary>
     ///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to

test/EFCore.Design.Tests/Design/Internal/CSharpHelperTest.cs

@@ -50,6 +50,12 @@ public class CSharpHelperTest
          "-3.402823E+38f"), InlineData(
          3.402823E+38f, // Single MaxValue
          "3.402823E+38f"), InlineData(
+         float.NegativeInfinity,
+         "float.NegativeInfinity"), InlineData(
+         float.PositiveInfinity,
+         "float.PositiveInfinity"), InlineData(
+         float.NaN,
+         "float.NaN"), InlineData(
          42,
          "42"), InlineData(
          42L,