Fix renderName on RenderBlock and RenderParagraph.

sky/tests/layout/ellipsis-expected.txt

Index: sky/tests/layout/ellipsis-expected.txt
diff --git a/sky/tests/layout/ellipsis-expected.txt b/sky/tests/layout/ellipsis-expected.txt
index 5efb8354b0acb64fa97aa903390e4831682fd7cc..51ce0e0621cdbefdd767ab4cb657e04ab0046051 100644
--- a/sky/tests/layout/ellipsis-expected.txt
+++ b/sky/tests/layout/ellipsis-expected.txt
@@ -4,18 +4,18 @@ layer at (0,0) size 800x94
   RenderBlock {sky} at (0,0) size 800x94
 layer at (0,0) size 56x69 clip at (3,3) size 50x63 scrollWidth 93
   RenderBlock {div} at (0,0) size 56x69 [border: (3px solid #0000FF)]
-    RenderBlock (anonymous) at (3,3) size 50x19
+    RenderParagraph (anonymous) at (3,3) size 50x19
       RenderText {#text} at (0,0) size 91x19
         text run at (0,0) width 91: "These lines"
-    RenderBlock (anonymous) at (3,47) size 50x19
+    RenderParagraph (anonymous) at (3,47) size 50x19
       RenderText {#text} at (0,0) size 94x19
         text run at (0,0) width 94: "all ellipsize."
 layer at (3,22) size 56x25 backgroundClip at (3,22) size 50x25 clip at (6,25) size 47x19 outlineClip at (3,3) size 50x63 scrollWidth 53
-  RenderBlock {p} at (3,22) size 56x25 [border: (3px solid #FF0000)]
+  RenderParagraph {p} at (3,22) size 56x25 [border: (3px solid #FF0000)]
     RenderText {#text} at (3,3) size 54x19
       text run at (3,3) width 54: "should"
 layer at (0,69) size 56x25 clip at (3,72) size 50x19 scrollWidth 117
-  RenderBlock {p} at (0,69) size 56x25 [border: (3px solid #FF0000)]
+  RenderParagraph {p} at (0,69) size 56x25 [border: (3px solid #FF0000)]
     RenderInline {span} at (0,0) size 117x19
       RenderText {#text} at (3,3) size 117x19
         text run at (3,3) width 117: "As should this."