[clang][ObjectiveC] Fix Parsing the :: Optional Scope Specifier (#119908)
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…vm#119908) The parser hangs when processing types/variables prefixed by `::` as an optional scope specifier. For example, ``` - (instancetype)init:(::A *) foo; ``` The parser should not hang, and it should emit an error. This PR implements the error check. rdar://140885078 (cherry picked from commit 1418018)
fredriss
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Dec 20, 2024
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The parser hangs when processing types/variables prefixed by
::as an optional scope specifier. For example,The parser should not hang, and it should emit an error. This PR implements the error check.
rdar://140885078
(cherry picked from commit 1418018)