* Removed bitmapshaders from expectations/gm/ignored-tests.txt.

expectations/gm/Test-Win7-ShuttleA-HD2000-x86-Release/expected-results.json

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           9785004568147979273
         ]
       ], 
       "bugs": [
@@ skipping 931 matching lines @@
           "bitmap-64bitMD5", 
           3456624151493900845
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "bitmapshaders_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          10069875845044424404
+          12926889331802186480
         ]
       ], 
+      "bugs": [
+        2293
+      ], 
       "reviewed-by-human": true
     }, 
     "bitmapshaders_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           13070823660450131961
         ]
       ], 
       "reviewed-by-human": true
@@ skipping 12437 matching lines @@
           15843716056234692659
         ]
       ], 
       "bugs": [
         2146
       ], 
       "reviewed-by-human": false
     }
   }
 }