dillon1000/react

Ignore CR/LF differences when warning about markup mismatch (#11119)

* Add regression test for CR-insensitive hydration

* Normalize CR when comparing server HTML to DOM

* Move tests in the file

* Add a failing test for comparing attributes

* Normalize CR for attributes too

* Add a test case for CR in dangerouslySetInnerHTML

* Undo the fix per feedback

* Change the fix to be DEV-only and still patch up LF -> CR

* Remove the dangerouslySetInnerHTML test

It's always going to "pass" because we normalize HTML anyway.

Except that it won't pass because we intentionally don't patch up dangerouslyInnerHTML.

* Fix issue that Flow failed to catch

* Add null character tests

* Normalize both client and server value for the warning

* Fix the bug

* Normalize replacement character away as well

* Fix outdated comment