Rebaseline "lighting" GM tests

expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86_64-Release/expected-results.json

 {
   "actual-results": {
     "failed": null, 
     "failure-ignored": null, 
     "no-comparison": null, 
     "succeeded": null
   }, 
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
@@ skipping 8241 matching lines @@
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }, 
     "lighting_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          14845804633433568123
+          14784133682562599088
         ]
       ], 
       "ignore-failure": false
     }, 
     "lighting_8888.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          10811750384051317357
+          18316167883768300815
         ]
       ], 
       "ignore-failure": false
     }, 
     "lighting_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          451842236743937978
+          8140496550933031463
         ]
       ], 
       "ignore-failure": false
     }, 
     "lighting_mesa.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           18432385500203017869
         ]
@@ skipping 4253 matching lines @@
           10424380103329133154
         ]
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }
   }
 }