The Hackerverse will handle this as it handles most things - it will be viewed as damage and routed around or it will be considered irrelevant and accepted. If the language elements themselves are transliterated, there would have to be a formal standard to relate the elements-in-English with the element-in-Spanish so that the compiler can do a Pass to convert them into the supported input. Or, front-ends could be cloned which strikes me as more brittle (changes to a larger code base).