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

[kadir çetinkaya via cfe-commits]

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@@ -1234,15 +1234,6 @@ SYMBOL(FILE, None, <stdio.h>)
 SYMBOL(_Exit, std::, <cstdlib>)
 SYMBOL(_Exit, None, <cstdlib>)
 SYMBOL(_Exit, None, <stdlib.h>)
-SYMBOL(abs, std::, <cstdlib>)
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kadircet wrote:

i think we can preserve these by adding a variant for `abs` on `int`.

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