J9 doesn't convert arguments before cd call

[jip]

https://code.jsoftware.com/wiki/Guides/DLLs/Calling_DLLs says: "Arguments are converted as required to conform with their declaration type.". It was definitely true for j807/j64/linux, but not for j9.6.0-beta1/j64/linux.

Details are in jsoftware/math_lapack2@6ab70f0 which fixes a bug just catched. In short, if external DLL procedure expects an argument as array of datatype integer (e.g. (,2)), but an array of type float (e.g. (,2.0)) was sent, then J807 converts argument and cd calls procedure successively, but J9.6 throws "domain error in cd, executing dyad 15!:0". (cder '') returns error 6 x ("parameter x type doesn't match declaration").