Restore the trap type argument to the DTrace trap hook, removed in r268600.
It's redundant at the moment since it can be obtained from the trapframe
on the architectures where DTrace is supported, but this won't be the case
with ARM.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@276142 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Fix a memory leak that occured when looking up CTF info for a symbol.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@276143 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f