Detect NPC/Projectile/Item.CloneDefaults usage after assigning fields

[direwolf420]

A common mistake some modders make is writing code like this:

Item.damage = 20;
Item.scale = 2;
Item.CloneDefaults(ItemID.Muramasa);
Item.knockBack = 3f;

Which will not cause an error, but it will ignore the assignments prior to CloneDefaults.
A warning or an error thrown by the analyzer would be helpful in highlighting potential issues.

This should be done for all instances of CloneDefaults for vanilla content classes

[direwolf420]

I just remembered that something similar, which was actually causing exceptions and behavioral glitches, was fixed on a TML level: TileObjectData declarations for ModTiles. Modders sometimes placed the CopyFrom call in the wrong place. Maybe something similar can be done in TML for CloneDefaults?