Commit b4a8ce52 authored by Committed by Marge Bot
If a :reload finds syntax errors in the module graph, remove the loaded modules. (Fixes #17549)
The processing in `compiler/main/GhcMake.hs` computes the ModuleGraph. If it finds errors in the module header or in the import specifications, then the new module graph is incomplete and should not be used. The code before #17549 just reported the errors and left the old ModuleGraph in place. The new code of this MR replaces the old ModuleGraph with an empty one.
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