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layer at (0,0) size 800x600
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      RenderBlock (anonymous) at (0,0) size 784x36
        RenderText {#text} at (0,0) size 751x36
          text run at (0,0) width 751: "This tests that Unicode bidi control characters are not rendered and have zero width. The next two lines should look the"
          text run at (0,18) width 36: "same."
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        RenderText {#text} at (0,0) size 14x17
          text run at (0,0) width 7: "a"
          text run at (7,0) width 7 LTR override: "e\x{300}"
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          text run at (0,18) width 14: "ae\x{300}"
