William Cheng 40d7b58666
[Swift] Enhancements to iOS tests (#4521)
* update .travis.yml.ios

* test ios travis

* skip javadoc error

* use xcode 10.3

* remove --no-ri

* remove --no-rdoc

* use ios 12.4

* update to ios 13.1
2019-11-18 13:30:35 +08:00
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