Add test references for horizontal stretchy operators.
https://bugs.webkit.org/show_bug.cgi?id=72828

Unreviewed Mac gardening.

* platform/mac/mathml/horizontal-LatinModern-expected.txt: Added.
* platform/mac/mathml/horizontal-LatinModern-munderover-expected.txt: Added.
* platform/mac/mathml/opentype-stretchy-horizontal-expected.txt: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@169643 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Add test references for horizontal stretchy operators.
https://bugs.webkit.org/show_bug.cgi?id=72828

Unreviewed Win and EFL gardening.

* platform/efl/mathml/opentype/horizontal-LatinModern-expected.txt: Added.
* platform/efl/mathml/opentype/horizontal-LatinModern-munderover-expected.txt: Added.
* platform/efl/mathml/opentype/opentype-stretchy-horizontal-expected.txt: Added.
* platform/win/mathml/opentype/horizontal-LatinModern-expected.txt: Added.
* platform/win/mathml/opentype/horizontal-LatinModern-munderover-expected.txt: Added.
* platform/win/mathml/opentype/opentype-stretchy-horizontal-expected.txt: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@169644 268f45cc-cd09-0410-ab3c-d52691b4dbfc