[Issue 23716] ImportC: Missing documentation on the asm keyword accepted as an extension

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23716
Issue 23716 depends on issue 23689, which changed state.

Issue 23689 Summary: ImportC: C tests in the testsuite are not valid C
https://issues.dlang.org/show_bug.cgi?id=23689

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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