`misc-unused-using-decls` false positive on exported usings

[RoqueDeicide]

I'm exporting a using from a module:

export using ::IDirectMusic;

clang-tidy incorrectly reports this as an unused using declaration.

Version

21.1.2

[llvmbot]

@llvm/issue-subscribers-clang-tidy

Author: None (RoqueDeicide)

I'm exporting a using from a module:

export using ::IDirectMusic;

clang-tidy incorrectly reports this as an unused using declaration.

Version

21.1.2

[vbvictor]

I suspect the check generally lack support of modules.

[llvmbot]

@llvm/issue-subscribers-c-20

Author: None (RoqueDeicide)

I'm exporting a using from a module:

export using ::IDirectMusic;

clang-tidy incorrectly reports this as an unused using declaration.

Version

21.1.2

[llvmbot]

@llvm/issue-subscribers-clang-modules

Author: None (RoqueDeicide)

I'm exporting a using from a module:

export using ::IDirectMusic;

clang-tidy incorrectly reports this as an unused using declaration.

Version

21.1.2

[ChuanqiXu9]

We shouldn't treat any exported decl as unused.