message: [swift-pr] Include TestSwiftGenericExpression as part of standard pr testing.
  This would've caught problem triggered by a change in swiftc.
diff: @@ -31,12 +31,14 @@ class TestSwiftGenericExpressions(lldbtest.TestBase):
  @decorators.skipIfLinux # <rdar://problem/30783388> test crashing sometimes when run on linux
  @decorators.swiftTest
  + @decorators.add_test_categories(["swiftpr"])
  def test_generic_expressions(self):
  """Test expressions in generic contexts"""
  self.build()
  self.do_test()
  @decorators.swiftTest
  + @decorators.add_test_categories(["swiftpr"])
  def test_ivars_in_generic_expressions(self):
  """Test ivar access through expressions in generic contexts"""
  self.build()
  