better function to check arrays in split_elements_in_operation. Also fix for instruction apply_truncation when a key arg is passed.

Bad workaround for fixing find_first_use_variable that was failing with variables with names like 'd' or 'c'

fix_read_call was not substituting var exact match. * operator was missing from operators that can preceed a intrinsict

Small bugfix to acount for the variable declaration found inside an ALLOCATE in the nemo trunk post 4.0.2