Tidy up: move info-table related stuff to CmmInfo

Prep for #709
Solaris: do not use timer_create

Submitted by: Karel Gardas <karel.gardas@centrum.cz>
fix rts/Linker compilation issues on AMD64/Solaris platform

Submitted by: Karel Gardas <karel.gardas@centrum.cz>
ghc: mkGmpDerivedConstants binary gone away