[lldb] Don't crash when attaching to pid and no binaries found (#100287) #9188
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There is a narrow window during process launch on macOS where lldb can attach and no binaries will be seen as loaded in the process (none reported by libdyld SPI). A year ago I made changes to set the new-binary-loaded breakpoint correctly despite this. But we've seen a crash when this combination is seen, where
CommandObjectProcessAttach::DoExecute assumed there was at least one binary registered in the Target. Fix that.
Also fix two FileSpec API uses from when we didn't have a GetPath() method that returned a std::string, and was copying the filepaths into fixed length buffers. All of this code was from ~14 years ago when we didn't have that API.
rdar://131631627
(cherry picked from commit 56535a0)