Add llvm 18 support

[mcbarton]

This PR adds Clang-18 to the CI now that it has been released.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.63%. Comparing base (bd72e91) to head (59e47db).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #202   +/-   ##
=======================================
  Coverage   78.63%   78.63%           
=======================================
  Files           8        8           
  Lines        3056     3057    +1     
=======================================
+ Hits         2403     2404    +1     
  Misses        653      653           

Files	Coverage Δ
lib/Interpreter/DynamicLibraryManager.cpp	75.12% <100.00%> (ø)

... and 1 file with indirect coverage changes

Files	Coverage Δ
lib/Interpreter/DynamicLibraryManager.cpp	75.12% <100.00%> (ø)

... and 1 file with indirect coverage changes

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[mcbarton]

@vgvassilev This PR is ready for review.

[vgvassilev]

Can you run git-clang-format HEAD~ to make the bot happy?

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[mcbarton]

@vgvassilev It is passing all checks now.

[mcbarton]

@alexander-penev can you review this PR for me please?

[vgvassilev]

We will need to drop support for clang7. Our policy is to support the last 10 versions. That would require to clean up the ifdefs that mention clang 7.

[vgvassilev]

Can you edit the commit message to something like:

Add support for clang18.

Fixes #805.

[mcbarton]

Can you edit the commit message to something like:

Add support for clang18.

Fixes #805.

I can change the commit message to "Add support for clang18" . We have no specific issue of support for clang 18 at the moment. I can create one and then add the fix message as you suggest.

[mcbarton]

We will need to drop support for clang7. Our policy is to support the last 10 versions. That would require to clean up the ifdefs that mention clang 7.

I will look for any ifdefs that mention clang 7 tomorrow and remove them.

[vgvassilev]

Can you edit the commit message to something like:

Add support for clang18.

Fixes #805.

I can change the commit message to "Add support for clang18" . We have no specific issue of support for clang 18 at the moment. I can create one and then add the fix message as you suggest.

Dammit, no, I thought this is on the clad repository :(

[vgvassilev]

We will need to drop support for clang7. Our policy is to support the last 10 versions. That would require to clean up the ifdefs that mention clang 7.

I will look for any ifdefs that mention clang 7 tomorrow and remove them.

Please ignore that comment...

[mcbarton]

@vgvassilev @alexander-penev after this PR is reviewed and merged I am going to add a xeus-cpp build to the end of the wasm CppInterOp CI jobs. This will allow me/you to test possible changes to get the correct extension in compiler-research/xeus-cpp#14 . This will also help troubleshoot any other changes which may be needed.

[vgvassilev]

LGTM!