[Webkit-unassigned] [Bug 221523] New: REGRESSION(r272379) [WPE] imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant tests are Image Failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=221523

            Bug ID: 221523
           Summary: REGRESSION(r272379) [WPE]
                    imported/w3c/web-platform-tests/mathml/relations/css-s
                    tyling/mathvariant tests are Image Failing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Text
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: lmoura at igalia.com
                CC: mmaxfield at apple.com

imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-bold-fraktur.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-bold-italic.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-bold-sans-serif.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-bold-script.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-bold.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-double-struck.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-fraktur.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-initial.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-italic.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-looped.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-monospace.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-sans-serif-bold-italic.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-sans-serif-italic.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-sans-serif.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-script.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-stretched.html
imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant-tailed.html

In the tests listed above, the 0 glyph is always drawn.

Changing the guard added by r272379 to `#if (!PLATFORM(COCOA) && !USE(GLIB)) || USE(CTFONTSHAPEGLYPHS)` seems to fix the issue, although the original test added (fast/text/multi-code-unit-simple-path.html) keeps failing for GTK/WPE. It keeps telling a reference mismatch did not happen, despite the test on Minibrowser showing the char box.

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