313b95f3a8
Prior to https://github.com/llvm/llvm-project/pull/164998, recent LLDB versions would fail to parse synthesized property setters correctly. The only way this failure would manifest is an error to the console: ``` error: main.o [0x00000000000000cd]: invalid Objective-C method DW_TAG_subprogram (DW_TAG_subprogram), please file a bug and attach the file at the start of this error message ``` There weren't any Objective-C tests that failed when the original regression (https://github.com/llvm/llvm-project/pull/100355) landed. This patch adds a test that explicitly checks that the type of the setter is sensible. This test fails without https://github.com/llvm/llvm-project/pull/164998 and passes with it. I decided not to check for the absence of the console error because that kind of test would be fragile to the removal of (or any changes to) the error message.
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