Don't let PaintInvalidationLocationChange shadow other reasons

third_party/WebKit/LayoutTests/platform/linux/fast/repaint/table-collapsed-border-expected.txt

 {
   "bounds": [800, 600],
   "children": [
     {
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutTable TABLE",
@@ skipping 51 matching lines @@
           "reason": "forced by layout"
         },
         {
           "object": "LayoutTableCell TD id='d'",
           "rect": [22, 132, 81, 22],
           "reason": "layoutObject removal"
         },
         {
           "object": "LayoutText #text",
           "rect": [23, 317, 71, 19],
-          "reason": "location change"
+          "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutText #text",
           "rect": [23, 133, 71, 19],
           "reason": "layoutObject removal"
         },
         {
           "object": "LayoutText #text",
           "rect": [23, 225, 32, 19],
           "reason": "layoutObject removal"
@@ skipping 23 matching lines @@
         {
           "object": "InlineTextBox 'ipsum dolor'",
           "reason": "full"
         },
         {
           "object": "InlineTextBox 'ipsum dolor'",
           "reason": "full"
         },
         {
           "object": "InlineTextBox 'ipsum dolor'",
-          "reason": "location change"
+          "reason": "layoutObject insertion"
         },
         {
           "object": "InlineTextBox 'sit amet'",
           "reason": "full"
         },
         {
           "object": "InlineTextBox 'sit amet'",
           "reason": "full"
         },
         {
@@ skipping 106 matching lines @@
         },
         {
           "object": "RootInlineBox",
           "reason": "full"
         }
       ]
     }
   ]
 }