message: [test] Re-enable TestGenericError on Linux, improving coverage for generics.
  <rdar://problem/55566502>
diff: import lldbsuite.test.lldbinline as lldbinline
  from lldbsuite.test.decorators import *
  -lldbinline.MakeInlineTest(__file__, globals(), decorators=[swiftTest, skipUnlessDarwin])
  +lldbinline.MakeInlineTest(__file__, globals(), decorators=[swiftTest])
  