Bugfix: Platina-Intrinsic: pass type/expr by operand

This commit catches up to a matching bugfix in patmos-llvm.

The former implementation passed the platina type and expression
infromation by means of two metadata items attached to the intrinsic
call instruction. However, the tail-call-optimization dropped this
metadata (in sync with the docs):

  A transformation is required to drop any metadata attachment that it
  does not know or know it can’t preserve.

Passing this data by means of operands to the call instruction should
be more robust.