llvm-project

22d2f7f3 - [lldb] Emit a progress event from the source manager (#165802)

[lldb] Emit a progress event from the source manager (#165802) Reading a source file might take a while, for example because it's located on a virtual file system that's fetching the data on demand. This PR emits a progress event to convey this to the user when reading the file exceeds a certain threshold (500ms). Although it doesn't speed up the operation, it still greatly improves the user experience by helping them understand what's going on. rdar://163750392