[clang] [clang][analyzer] Move StreamChecker out of the alpha package. (PR #89247)

[Balazs Benics via cfe-commits]

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@@ -1462,6 +1462,99 @@ checker).
 
 Default value of the option is ``true``.
 
+.. _unix-Stream:
+
+unix.Stream (C)
+"""""""""""""""""""""
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steakhal wrote:

This line does not match the length of the section title.

https://github.com/llvm/llvm-project/pull/89247