more PDF filterbitmap ignores

expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86-Release/expected-results.json

Index: expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86-Release/expected-results.json
diff --git a/expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86-Release/expected-results.json b/expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86-Release/expected-results.json
index 925fe95b576e8f684f5796038ee8d52249be3f27..e9d83333f33555bb705a37fbf67dc92395199db1 100644
--- a/expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86-Release/expected-results.json
+++ b/expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86-Release/expected-results.json
@@ -6935,24 +6935,20 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          2779277484932752271
+          14184121850743709609
         ]
       ], 
-      "bugs": [
-        1578
-      ], 
+      "ignore-failure": true, 
       "reviewed-by-human": false
     }, 
     "filterbitmap_text_10.00pt_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          11874366064483490608
+          9088538566973174252
         ]
       ], 
-      "bugs": [
-        1759
-      ], 
+      "ignore-failure": true, 
       "reviewed-by-human": false
     }, 
     "filterbitmap_text_3.00pt_565.png": {
@@ -6986,12 +6982,10 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          4998031434825823902
+          13491051302552217473
         ]
       ], 
-      "bugs": [
-        1578
-      ], 
+      "ignore-failure": true, 
       "reviewed-by-human": false
     }, 
     "filterbitmap_text_7.00pt_565.png": {
@@ -7025,12 +7019,10 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          13647219985192072906
+          10909718999241832444
         ]
       ], 
-      "bugs": [
-        1578
-      ], 
+      "ignore-failure": true, 
       "reviewed-by-human": false
     }, 
     "fontcache_gpu.png": {