Backport math fixes (#1030)

Signed-off-by: Kai Jellinghaus <contact@kaij.tech>
Co-authored-by: Beyley Thomas <ep1cm1n10n123@gmail.com>

Author: HurricanKai

tests/Silk.NET.Maths.Tests/Vector3Tests.cs

@@ -27,7 +27,7 @@ public void Vector3CopyToTest()
             Assert.Throws<NullReferenceException>(() => v1.CopyTo(null, 0));
             Assert.Throws<ArgumentOutOfRangeException>(() => v1.CopyTo(a, -1));
             Assert.Throws<ArgumentOutOfRangeException>(() => v1.CopyTo(a, a.Length));
-            Assert.Throws<ArgumentException>(null, () => v1.CopyTo(a, a.Length - 2));
+            Assert.Throws<ArgumentException>(() => v1.CopyTo(a, a.Length - 2));
 
             v1.CopyTo(a, 1);
             v1.CopyTo(b);

tests/Silk.NET.Maths.Tests/Vector4Tests.cs

@@ -27,7 +27,7 @@ public void Vector4CopyToTest()
             Assert.Throws<NullReferenceException>(() => v1.CopyTo(null, 0));
             Assert.Throws<ArgumentOutOfRangeException>(() => v1.CopyTo(a, -1));
             Assert.Throws<ArgumentOutOfRangeException>(() => v1.CopyTo(a, a.Length));
-            Assert.Throws<ArgumentException>(null, () => v1.CopyTo(a, a.Length - 2));
+            Assert.Throws<ArgumentException>(() => v1.CopyTo(a, a.Length - 2));
 
             v1.CopyTo(a, 1);
             v1.CopyTo(b);