compiler: Fix bootstrapping with 9.8.3
Bump the CPP in genSym to ensure that we don't look for
ghc_unique_counter64
in any compilers earlier than 9.8.4.
Inconsistency noticed in #25519 (closed).
Bump the CPP in genSym to ensure that we don't look for
ghc_unique_counter64
in any compilers earlier than 9.8.4.
Inconsistency noticed in #25519 (closed).