[RF] Cleanup RooLagrangianMorphFunc

[rahulgrit]

This Pull request:

WIP will fill this shortly

Changes or fixes:

Checklist:

• tested changes locally
• updated the docs (if necessary)

This PR is to address #9845

[phsft-bot]

Can one of the admins verify this patch?

[lmoneta]

@phsft-bot build

[phsft-bot]

Starting build on ROOT-debian10-i386/cxx14, ROOT-performance-centos8-multicore/default, ROOT-ubuntu16/nortcxxmod, ROOT-ubuntu2004/soversion, mac1015/python3, mac11/cxx17, windows10/cxx14
How to customize builds

[phsft-bot]

Build failed on ROOT-performance-centos8-multicore/default.
Running on olbdw-01.cern.ch:/data/sftnight/workspace/root-pullrequests-build
See console output.

Errors:

• [2022-02-17T11:27:18.348Z] 1147/2251 Test T Color tracking #868: tutorial-roofit-rf711_lagrangianmorph .............................................................***Failed Error regular expression found in output. Regex=[: error:] 1.59 sec
• [2022-02-17T11:27:18.348Z] 1148/2251 Test [TDF] Avoid virtual calls in non-jitted transformations #869: tutorial-roofit-rf712_lagrangianmorphfit ..........................................................***Failed Error regular expression found in output. Regex=[: error:] 1.47 sec

Failing tests:

• projectroot.runtutorials.tutorial_roofit_rf711_lagrangianmorph
• projectroot.runtutorials.tutorial_roofit_rf712_lagrangianmorphfit
• projectroot.runtutorials.tutorial_roofit_rf712_lagrangianmorphfit_py
• projectroot.runtutorials.tutorial_roofit_rf711_lagrangianmorph_py

[phsft-bot]

Build failed on mac11/cxx17.
Running on macphsft20.dyndns.cern.ch:/Users/sftnight/build/workspace/root-pullrequests-build
See console output.

Errors:

• [2022-02-17T12:30:58.402Z] 1015/2354 Test Simplify implementation of TClass::FindClassOrBaseMethodWithId() #908: tutorial-roofit-rf711_lagrangianmorph .............................................................***Failed Error regular expression found in output. Regex=[: error:] 0.99 sec
• [2022-02-17T12:30:58.402Z] 1016/2354 Test Miscellaneous warning fixes #909: tutorial-roofit-rf712_lagrangianmorphfit ..........................................................***Failed Error regular expression found in output. Regex=[: error:] 0.99 sec

Failing tests:

• projectroot.runtutorials.tutorial_roofit_rf711_lagrangianmorph
• projectroot.runtutorials.tutorial_roofit_rf712_lagrangianmorphfit
• projectroot.runtutorials.tutorial_roofit_rf712_lagrangianmorphfit_py
• projectroot.runtutorials.tutorial_roofit_rf711_lagrangianmorph_py

[guitargeek]

@phsft-bot build

[phsft-bot]

Starting build on ROOT-debian10-i386/soversion, ROOT-performance-centos8-multicore/cxx17, ROOT-ubuntu18.04/nortcxxmod, ROOT-ubuntu2004/python3, mac1015/cxx17, mac11/cxx14, windows10/cxx14
How to customize builds

[guitargeek]

@phsft-bot build

[phsft-bot]

Starting build on ROOT-debian10-i386/soversion, ROOT-performance-centos8-multicore/cxx17, ROOT-ubuntu18.04/nortcxxmod, ROOT-ubuntu2004/python3, mac1015/cxx17, mac11/cxx14, windows10/cxx14
How to customize builds

[phsft-bot]

Build failed on ROOT-performance-centos8-multicore/cxx17.
Running on olbdw-01.cern.ch:/data/sftnight/workspace/root-pullrequests-build
See console output.

Failing tests:

• projectroot.runtutorials.tutorial_io_testMergeCont
• projectroot.runtutorials.tutorial_roostats_rs_numberCountingCombination

[guitargeek]

LGTM, thank you for al these improvements!