[clang] [Clang] Fix parsing of expressions of the form (T())[/*...*/] (PR #140053)

[Yanzuo Liu via cfe-commits]

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@@ -710,6 +710,7 @@ Bug Fixes to C++ Support
 - Clang now correctly parses arbitrary order of ``[[]]``, ``__attribute__`` and ``alignas`` attributes for declarations (#GH133107)
 - Fixed a crash when forming an invalid function type in a dependent context. (#GH138657) (#GH115725) (#GH68852)
 - Clang no longer segfaults when there is a configuration mismatch between modules and their users (http://crbug.com/400353616).
+- Fix parsing of expressions of the form ``((T))[expr]``. (#GH20723)
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zwuis wrote:

`(T())[expr]`

https://github.com/llvm/llvm-project/pull/140053