Forge coverage doesn't recognize require with custom error branches

[anajuliabit]

Component

Forge

Have you ensured that all of these are up to date?

• Foundry
• Foundryup

What version of Foundry are you on?

forge 0.2.0 (6179312 2024-06-10T00:18:46.177980000Z)

What command(s) is the bug in?

forge coverage --ir-minimum

Operating System

macOS (Apple Silicon)

Describe the bug

Solidity 0.8.26 introduce a new overload require(bool, Error) that allows usage of require functions with custom errors. This feature is available in the via-ir pipeline only.

Forge coverage doesn't recognize the require branches when using with custom error.

[gnapoli23]

I have the same problem while running forge doc.

[gnapoli23]

FYI: by looking at this commit, the legacy pipeline is still in the develop branch -> ethereum/solidity@06c27a5
And will be available in the next release: ethereum/solidity#15214 (comment)

[grandizzy]

this was fixed with #4294 and will be followed up as branch coverage in #8423