AthenaBaseComps: Fix clang warnings.

Fix clang warnings.

This merge request affects 1 package:

• Control/AthenaBaseComps

This merge request affects 2 files:

• Control/AthenaBaseComps/AthenaBaseComps/GaudiComponentVisitor.h
• Control/AthenaBaseComps/src/DynamicDataHelper.cxx

Adding @ssnyder as watcher

added Core master review-pending-level-1 labels

CI Result SUCCESS (hash 68cbc8fb)

	Athena	AthSimulation	AthGeneration	AnalysisBase	AthAnalysis	DetCommon
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
AthAnalysis: number of compilation errors 0, warnings 0
DetCommon: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 29994]

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

merged

mentioned in commit 8128bc46

added sweep:ignore label