Re-relaunch these two experiments (#1552)
Re-relaunch these two experiments (#1552)

#1549 relaunched 3 experiments but was unsuccessful because of a code
bug: two valid parameters in the config file were not recognized.
#1551 fixed that bug.

I re-relaunched the `libFuzzer` experiment manually to confirm it works,
and re-relaunch the other two here.
google/fuzzbench,google/fuzzbench,google/fuzzbench,google/fuzzbench,google/fuzzbench