Merge virtual mac-antialiasedtext and windows-directwrite test suites

LayoutTests/platform/win/virtual/windows-directwrite/fast/text/in-rendered-text-rtl-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 784x584
-      RenderBlock {P} at (0,0) size 784x36
-        RenderText {#text} at (0,0) size 55x17
-          text run at (0,0) width 55: "Test for "
-        RenderInline {I} at (0,0) size 768x35
-          RenderInline {A} at (0,0) size 354x17 [color=#0000EE]
-            RenderText {#text} at (54,0) size 354x17
-              text run at (54,0) width 354: "http://bugzilla.opendarwin.org/show_bug.cgi?id=7433"
-          RenderText {#text} at (407,0) size 768x35
-            text run at (407,0) width 361: " REGRESSION (r12789): Second RTL text run on a line"
-            text run at (0,18) width 119: "cannot be selected"
-        RenderText {#text} at (118,18) size 5x17
-          text run at (118,18) width 5: "."
-      RenderBlock {P} at (0,52) size 784x18
-        RenderText {#text} at (0,0) size 660x17
-          text run at (0,0) width 660: "The rightmost two words in the Hebrew text should be selectable by dragging or double-clicking them."
-      RenderBlock {HR} at (0,86) size 784x2 [border: (1px inset #EEEEEE)]
-      RenderBlock (anonymous) at (0,96) size 784x18
-        RenderInline {SPAN} at (0,0) size 115x17
-          RenderText {#text} at (0,0) size 115x17
-            text run at (0,0) width 50 RTL: "\x{5E9}\x{5EA}\x{5D4} \x{5DE}\x{5D9}\x{5E5}"
-            text run at (49,0) width 66 RTL: "\x{5D0}\x{5DB}\x{5DC}\x{5EA} \x{5E4}\x{5DC}\x{5E4}\x{5DC} "
-        RenderText {#text} at (0,0) size 0x0
-caret: position 3 of child 0 {#text} of child 7 {SPAN} of body