Notify client on all dmypy crashes (#7593)

msullivan · web-flow · commit 583b99e5096c · 2019-10-01T13:31:02.000-07:00
This is done by setting the raise_exceptions option, which will cause the exception to continue to be propagated. Closes #4804. Tested by introducing a crash in the parser and verifying the message came through.
diff --git a/mypy/dmypy_server.py b/mypy/dmypy_server.py
@@ -175,6 +175,7 @@ def __init__(self, options: Options,
 
         self.fscache = FileSystemCache()
 
+        options.raise_exceptions = True
         options.incremental = True
         options.fine_grained_incremental = True
         options.show_traceback = True
