"Eliminating a test of a variable with a declared type"
Hi! I have some code that compiles and works fine with CMUCL and ACL. With Lispworks it also does what it's supposed to do but I get a lot of "Eliminating a test of a variable with a declared type" warnings when compiling. I have no idea what this means and don't know where to look at in the docs to find more information about this message. Could somebody shed a light on this? Thanks in advance, Edi.