[clang] [include-cleaner] Support multi-header symbols in mapping generator (PR #147720)

[kadir çetinkaya via cfe-commits]

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@@ -279,154 +17,55 @@ SYMBOL(abs, None, <stdlib.h>)
 SYMBOL(abs, None, <cmath>)
 SYMBOL(abs, None, <math.h>)
 
-// Only add headers for the generic atomic template.
-// Ignore variants (std::weak_ptr, std::shared_ptr).
-SYMBOL(atomic, std::, <atomic>)
-// atomic_* family symbols. <stdatomic.h> is for C compatibility.
-SYMBOL(atomic_bool, std::, <atomic>)
+// atomic_* family symbols.
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kadircet wrote:

fwiw, we should actually delete all of this. these should never been part of this list per https://eel.is/c++draft/stdatomic.h.syn#3

https://github.com/llvm/llvm-project/pull/147720