Convert first letter into a pseudo element.

Source/core/rendering/RenderTreeAsText.cpp

Index: Source/core/rendering/RenderTreeAsText.cpp
diff --git a/Source/core/rendering/RenderTreeAsText.cpp b/Source/core/rendering/RenderTreeAsText.cpp
index 6fb01b89623dd2a2645ff5a37939fe8f78a3816d..8ecb8923711f786cacb55e4bbb82060a6dfa3d84 100644
--- a/Source/core/rendering/RenderTreeAsText.cpp
+++ b/Source/core/rendering/RenderTreeAsText.cpp
@@ -29,6 +29,7 @@
 #include "core/HTMLNames.h"
 #include "core/css/StylePropertySet.h"
 #include "core/dom/Document.h"
+#include "core/dom/PseudoElement.h"
 #include "core/editing/FrameSelection.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
@@ -176,7 +177,7 @@ void RenderTreeAsText::writeRenderObject(TextStream& ts, const RenderObject& o,
     if (o.node()) {
         String tagName = getTagName(o.node());
         // FIXME: Temporary hack to make tests pass by simulating the old generated content output.
-        if (o.isPseudoElement() || (o.parent() && o.parent()->isPseudoElement()))
+        if (o.isPseudoElement() || (o.parent() && o.parent()->isPseudoElement() && toPseudoElement(o.parent()->node())->pseudoId() != FIRST_LETTER))
             tagName = emptyAtom;
         if (!tagName.isEmpty()) {
             ts << " {" << tagName << "}";