allow ADL of `toString` in Property

This is needed to be consistent with the ADL of toStream and parse.

Also, add dedicated toString to GaudiMath::Interpolation. Required to make sure that toStream generates valid python (i.e. it must include quotes) and toString can be parsed back by fromString (i.e. it must not include the quotes!)

changed the description

mentioned in commit lhcb/Rec@f6bd30e6

mentioned in merge request lhcb/Rec!681 (merged)

• [2017-07-25 22:03] Validation started with lhcb-gaudi-merge#174
• [2017-07-26 00:03] Validation started with lhcb-future-clang#261
• [2017-07-26 00:04] Validation started with lhcb-future#481
• [2017-07-26 11:52] Validation started with lhcb-future#482

mentioned in merge request lhcb/LHCb!794 (merged)

@clemenci : this is needed to generate TCKs... so please include before releasing v28r3! @rmatev: FYI

assigned to @clemenci

changed milestone to %v28r3

approved this merge request

merged

mentioned in commit e6fc7ad5

mentioned in merge request lhcb/Hlt!431 (merged)