Create an antialiased virtual layout test group for font testing on Mac

LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/international/bidi-AN-after-empty-run-expected.txt

Index: LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/international/bidi-AN-after-empty-run-expected.txt
diff --git a/LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/international/bidi-AN-after-empty-run-expected.txt b/LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/international/bidi-AN-after-empty-run-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..bbe0b147ddeb50a8b964453e9afc733dd7fd7d97
--- /dev/null
+++ b/LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/international/bidi-AN-after-empty-run-expected.txt
@@ -0,0 +1,30 @@
+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 784x18
+        RenderText {#text} at (0,0) size 53x18
+          text run at (0,0) width 53: "Test for "
+        RenderInline {I} at (0,0) size 396x18
+          RenderInline {A} at (0,0) size 154x18 [color=#0000EE]
+            RenderText {#text} at (53,0) size 154x18
+              text run at (53,0) width 154: "rdar://problem/6020930"
+          RenderText {#text} at (207,0) size 242x18
+            text run at (207,0) width 242: " Bidi Problem When Resizing Window"
+        RenderText {#text} at (449,0) size 4x18
+          text run at (449,0) width 4: "."
+      RenderBlock {P} at (0,34) size 784x18
+        RenderText {#text} at (0,0) size 320x18
+          text run at (0,0) width 320: "The boxes below should be identical to each other."
+      RenderBlock {DIV} at (0,68) size 90x52 [border: (1px solid #0000FF)]
+        RenderText {#text} at (5,6) size 60x39
+          text run at (5,6) width 56 RTL: "\x{627}\x{644}\x{645}\x{627}\x{626}\x{629} \x{645}\x{644}\x{64A}\x{627}\x{631}"
+          text run at (60,6) width 5: " "
+          text run at (5,27) width 20 RTL: " \x{645}\x{646}"
+          text run at (24,27) width 41: "12345"
+      RenderBlock {DIV} at (0,120) size 90x52 [border: (1px solid #0000FF)]
+        RenderText {#text} at (5,6) size 60x39
+          text run at (5,6) width 56 RTL: "\x{627}\x{644}\x{645}\x{627}\x{626}\x{629} \x{645}\x{644}\x{64A}\x{627}\x{631}"
+          text run at (5,27) width 20 RTL: " \x{645}\x{646}"
+          text run at (24,27) width 41: "12345"