Merge virtual mac-antialiasedtext and windows-directwrite test suites

LayoutTests/platform/mac-snowleopard/virtual/mac-antialiasedtext/fast/text/fallback-traits-fixup-expected.txt

-layer at (0,0) size 800x600
-  RenderView at (0,0) size 800x600
-layer at (0,0) size 800x600
-  RenderBlock {HTML} at (0,0) size 800x600
-    RenderBody {BODY} at (8,8) size 784x576
-      RenderBlock {P} at (0,0) size 784x18
-        RenderText {#text} at (0,0) size 55x18
-          text run at (0,0) width 55: "Test for "
-        RenderInline {I} at (0,0) size 515x18
-          RenderInline {A} at (0,0) size 157x18 [color=#0000EE]
-            RenderText {#text} at (54,0) size 157x18
-              text run at (54,0) width 157: "rdar://problem/9528843"
-          RenderText {#text} at (210,0) size 359x18
-            text run at (210,0) width 5: " "
-            text run at (214,0) width 355: "STIX glyphs not rendered on this stackoverflow answer"
-        RenderText {#text} at (568,0) size 5x18
-          text run at (568,0) width 5: "."
-      RenderBlock {P} at (0,34) size 784x39
-        RenderText {#text} at (0,15) size 99x18
-          text run at (0,15) width 99: "A black circle: "
-        RenderInline {SPAN} at (0,0) size 23x37
-          RenderText {#text} at (98,0) size 23x37
-            text run at (98,0) width 23: "\x{26AB}"
-        RenderText {#text} at (0,0) size 0x0
-      RenderBlock {P} at (0,89) size 784x39
-        RenderText {#text} at (0,15) size 140x18
-          text run at (0,15) width 140: "Another black circle: "
-        RenderInline {SPAN} at (0,0) size 24x37
-          RenderText {#text} at (139,0) size 24x37
-            text run at (139,0) width 24: "\x{26AB}"
-        RenderText {#text} at (0,0) size 0x0