Summary
When building with CMAKE_BUILD_TYPE=Debug and/or optimization set to -Og there are a number of compiler warnings that cause the build to fail. See WT-9432 for context.

This is also likely to be related to WT-9209.

To reproduce the issue, run the following commands:

cd build
cmake -DCC_OPTIMIZE_LEVEL=-Og -DENABLE_STRICT=1 -G Ninja ../.
ninja

Motivation

• Does this affect any team outside of WT?
  No - the MongoDB server build is fine.

• How likely is it that this use case or problem will occur?
  Every time the mentioned options are configured.

• If the problem does occur, what are the consequences and how severe are they?
  There is a signal from a tool that our code may be incorrect, or in the least ambiguous. We should fix it.

• Is this issue urgent?
  Build cleanliness is important, so I think it's urgent.

Acceptance Criteria (Definition of Done)
Can build with debug information and all reasonable compiler warning flags enabled.

• Testing
  Evergreen testing with compiler options should be enabled.

• Documentation update
  Nope