[css-tables] Mark sibling cells dirty when a cell is added

third_party/WebKit/LayoutTests/fast/table/border-collapsing/cached-cell-append-expected.txt

 {
+  "name": "Content Root Layer",
   "bounds": [800, 600],
   "children": [
     {
+      "name": "LayoutView #document",
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "paintInvalidations": [
         {
+          "object": "LayoutTable TABLE",
+          "rect": [8, 59, 120, 5],
+          "reason": "incremental"
+        },
+        {
+          "object": "LayoutTable TABLE",
+          "rect": [8, 62, 120, 2],
+          "reason": "incremental"
+        },
+        {
           "object": "LayoutTableCell TD",
-          "rect": [63, 8, 60, 54],
+          "rect": [64, 8, 64, 56],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutTable TABLE",
-          "rect": [67, 8, 56, 54],
-          "reason": "incremental"
-        },
-        {
-          "object": "LayoutTable TABLE",
-          "rect": [68, 8, 55, 54],
+          "rect": [65, 8, 63, 56],
           "reason": "incremental"
         },
         {
           "object": "LayoutTableCell TD",
-          "reason": "full"
+          "rect": [8, 8, 62, 56],
+          "reason": "location change"
         },
         {
-          "object": "LayoutTableCell TD",
-          "reason": "full"
+          "object": "LayoutTable TABLE",
+          "rect": [68, 8, 60, 56],
+          "reason": "incremental"
         }
       ]
     }
+  ],
+  "objectPaintInvalidations": [
+    {
+      "object": "LayoutTableCell TD",
+      "reason": "style change"
+    },
+    {
+      "object": "LayoutTableCell TD",
+      "reason": "style change"
+    },
+    {
+      "object": "LayoutTable TABLE",
+      "reason": "incremental"
+    },
+    {
+      "object": "LayoutTableRow TR id='row'",
+      "reason": "location change"
+    },
+    {
+      "object": "LayoutTableCell TD",
+      "reason": "location change"
+    },
+    {
+      "object": "LayoutTableCell TD",
+      "reason": "layoutObject insertion"
+    }
   ]
 }