Skip mapping of glyphs to Unicode "Ideographic space" (issue 7416)

[Snuffleupagus]

Fixes #7416, which is an IE specific issue.

@brendandahl I think this should do it. Since I cannot reproduce the issue in neither Firefox nor Chrome, but only in IE, I'm not sure how meaningful it would be to add a test-case.
But please let me know if you think that we need one anyway!

[brendandahl]

/botio-linux preview

[pdfjsbot]

From: Bot.io (Linux)

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Received

Command cmd_preview from @brendandahl received. Current queue size: 0

Live output at: http://107.21.233.14:8877/f92ec0b01764b9b/output.txt

[pdfjsbot]

From: Bot.io (Linux)

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Success

Full output at http://107.21.233.14:8877/f92ec0b01764b9b/output.txt

Total script time: 1.07 mins

Published

• Viewer: http://107.21.233.14:8877/f92ec0b01764b9b/web/viewer.html
• B2G Viewer: http://107.21.233.14:8877/f92ec0b01764b9b/extensions/b2g/content/web/viewer.html
• Extension: http://107.21.233.14:8877/f92ec0b01764b9b/extensions/firefox/pdf.js.xpi

[timvandermeij]

This patch indeed seems to fix the issue, as reported by two users in the issue above. Nice work!

[yurydelendik]

/botio test

[pdfjsbot]

From: Bot.io (Windows)

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Received

Command cmd_test from @yurydelendik received. Current queue size: 1

Live output at: http://107.22.172.223:8877/ae38ae7a2df7d4a/output.txt

[pdfjsbot]

From: Bot.io (Linux)

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Received

Command cmd_test from @yurydelendik received. Current queue size: 0

Live output at: http://107.21.233.14:8877/28fc974582ac080/output.txt

[pdfjsbot]

From: Bot.io (Windows)

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Success

Full output at http://107.22.172.223:8877/ae38ae7a2df7d4a/output.txt

Total script time: 22.48 mins

• Font tests: Passed
• Unit tests: Passed
• Regression tests: Passed

[pdfjsbot]

From: Bot.io (Linux)

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Success

Full output at http://107.21.233.14:8877/28fc974582ac080/output.txt

Total script time: 28.39 mins

• Font tests: Passed
• Unit tests: Passed
• Regression tests: Passed

[yurydelendik]

Thank you for the patch.