Added missing include to fix the ROOT IBs build errors

[smuzaffar]

Adding missing TFile.h to fix the ROOTX IBs build errors.

[smuzaffar]

please test

[cmsbuild]

The code-checks are being triggered in jenkins.

[smuzaffar]

@silviodonato , this change is harmless and can be included for next IB. It fixes ROOTX IBs where in latest root version they have cleaned up unused headers.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-30496/16681

• This PR adds an extra 8KB to repository

[cmsbuild]

The tests are being triggered in jenkins.

• CMSSW_11_2_X_2020-07-01-2300/slc7_amd64_gcc820: https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/7589/console Started: 2020/07/02 10:28

[cmsbuild]

A new Pull Request was created by @smuzaffar (Malik Shahzad Muzaffar) for master.

It involves the following packages:

L1Trigger/L1TTrackMatch

@cmsbuild, @rekovic, @benkrikler, @kpedro88 can you please review it and eventually sign? Thanks.
@Martin-Grunewald this is something you requested to watch as well.
@silviodonato, @dpiparo you are the release manager for this.

cms-bot commands are listed here

[cmsbuild]

+1
Tested at: 5a6ce34
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-ae5ee6/7589/summary.html
CMSSW: CMSSW_11_2_X_2020-07-01-2300
SCRAM_ARCH: slc7_amd64_gcc820

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:

• DT TPG for Phase-2 #30344 @dtp2-tpg-am: DT TPG for Phase-2

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-ae5ee6/7589/git-log-recent-commits
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-ae5ee6/7589/git-merge-result

[cmsbuild]

Comparison job queued.

[silviodonato]

merge

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-ae5ee6/7589/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 4 differences found in the comparisons
• DQMHistoTests: Total files compared: 37
• DQMHistoTests: Total histograms compared: 2784120
• DQMHistoTests: Total failures: 7
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2784063
• DQMHistoTests: Total skipped: 50
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 36 files compared)
• Checked 154 log files, 17 edm output root files, 37 DQM output files