message: Remove test from swiftpr category
  This test is failing on the llvm-swift5-transition branch.
  rdar://problem/38193118
diff: @@ -25,7 +25,6 @@ class TestSwiftRangeType(TestBase):
  mydir = TestBase.compute_mydir(__file__)
  @decorators.swiftTest
  - @decorators.add_test_categories(["swiftpr"])
  def test_swift_range_type(self):
  """Test the Swift.Range<T> type"""
  self.build()
  