[cling] Ensure correct template argument printing for large integers

[devajithvs]

This Pull request:

We do not need a patch to set ULL suffix manually on top of Clang.

Policy.AlwaysIncludeTypeForTemplateArgument = true does the job.

This will get rid of the patch: root-project/llvm-project@5ae1304

I started the process of upstreaming (llvm/llvm-project#129235).
But on further digging, I realized we can simply use AlwaysIncludeTypeForTemplateArgument = true

Changes or fixes:

Checklist:

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

This PR fixes #

[pcanal]

Policy.AlwaysIncludeTypeForTemplateArgument = true does the job.

Does that also change the way smaller numbers are printed?

[devajithvs]

Does that also change the way smaller numbers are printed?

Yes. I realized that only after the tests failed. I'll try to figure out something.

[github-actions]

Test Results

    17 files      17 suites   4d 8h 34m 3s ⏱️
 2 725 tests  2 714 ✅ 0 💤 11 ❌
44 721 runs  44 634 ✅ 0 💤 87 ❌

For more details on these failures, see this check.

Results for commit 70787ce.

♻️ This comment has been updated with latest results.

[devajithvs]

Closing this as it will be a breaking change (can reopen this at a later stage when we really want to get rid of all the clang patches)