Hepmc3 nightly fixes 17122020 part 2

In this MR:

• Migration of the recent update to Pythia8 interface to hepmc3.

This merge request affects 2 packages:

• Generators/Pythia8_i
• Tracking/TrkValidation/TrkValTools

Affected files list will not be printed in this case

Adding @amorley as watcher

added Generators Tracking master review-pending-level-1 labels

added 1 commit

• edaa9b1b - Revert

Compare with previous version

This merge request affects 1 package:

• Generators/Pythia8_i

This merge request affects 1 file:

• Generators/Pythia8_i/src/Pythia8_i.cxx

CI Result FAILURE (hash b5b9fb53)

	Athena	AthSimulation	AthGeneration	AnalysisBase
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 1, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 25413]

CI Result SUCCESS (hash edaa9b1b)

	Athena	AthSimulation	AthGeneration	AnalysisBase
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 25414]

marked as a Work In Progress

added 70 commits

• edaa9b1b...00d997c6 - 67 commits from branch atlas:master
• 724b9b8c - Merge remote-tracking branch 'upstream/master' into hepmc3_nightly_fixes_17122020_part_2
• 4a7b1f28 - OK
• e3acfef6 - OK

Compare with previous version

unmarked as a Work In Progress

This merge request affects 1 package:

• Generators/Pythia8_i

This merge request affects 1 file:

• Generators/Pythia8_i/src/Pythia8_i.cxx

CI Result SUCCESS (hash e3acfef6)

	Athena	AthSimulation	AthGeneration	AnalysisBase
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 1
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 25450]

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit d8a720aa

added sweep:ignore label