[Cocoa] Add system-language-specific tests

[Cocoa] Add system-language-specific tests
https://bugs.webkit.org/show_bug.cgi?id=148775

Reviewed by Alexey Proskuryakov.

This patch adds (or rewrites) tests to take advantage of our new ability to mock
the system language for testing (https://bugs.webkit.org/show_bug.cgi?id=148671).

It tests these patches:
https://bugs.webkit.org/show_bug.cgi?id=148164
https://bugs.webkit.org/show_bug.cgi?id=147504
https://bugs.webkit.org/show_bug.cgi?id=147862
https://bugs.webkit.org/show_bug.cgi?id=147964

* fast/text/international/system-language/arabic-glyph-cache-fill-combine-expected.html: Renamed from LayoutTests/fast/text/arabic-glyph-cache-fill-combine-expected.html.
* fast/text/international/system-language/arabic-glyph-cache-fill-combine.html: Renamed from LayoutTests/fast/text/arabic-glyph-cache-fill-combine.html.
* fast/text/international/system-language/han-quotes-expected-mismatch.html: Added.
* fast/text/international/system-language/han-quotes.html: Added.
* fast/text/international/system-language/hindi-system-font-punctuation-expected.html: Renamed from LayoutTests/fast/text/hindi-system-font-punctuation-expected.html.
* fast/text/international/system-language/hindi-system-font-punctuation.html: Renamed from LayoutTests/fast/text/hindi-system-font-punctuation.html.
* fast/text/international/system-language/system-font-punctuation.html: Renamed from LayoutTests/fast/text/system-font-punctuation.html.
* platform/efl/TestExpectations:
* platform/gtk/TestExpectations:
* platform/ios-simulator/fast/text/international/system-language/system-font-punctuation-expected.txt: Renamed from LayoutTests/platform/ios-simulator/fast/text/system-font-punctuation-expected.txt.
* platform/mac/TestExpectations:
* platform/mac/fast/text/international/system-language/system-font-punctuation-expected.txt: Renamed from LayoutTests/platform/mac/fast/text/system-font-punctuation-expected.txt.
* platform/win/TestExpectations:
* platform/win/fast/text/international/system-language/system-font-punctuation-expected.txt: Renamed from LayoutTests/platform/win/fast/text/system-font-punctuation-expected.txt.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@189670 268f45cc-cd09-0410-ab3c-d52691b4dbfc