Fix evaluation of chained parameter functions, bug684.
Fix vpi_get of vpiSuppressVal, bug687.
Support vpi_get_time, bug688.
Compiler warning fix.
Merge branch 'master' of ssh://git-verilator-wsnyder/git/verilator
Fix enum value extension of '1.
Add UNPACKED warning to convert unpacked structs.
Fix vpi_remove_cb inside callback, bug689.
Fix of last commit, bug689.
Fix crash with coverage of structures, bug691.
Debug: With --debug, run check tree at all steps even if no --dump-more
Fix array assignment from const var, bug693.
Merge branch 'master' into issue-677-loop-unroll