Add bailout to x64 pixel array lithium instructions.

src/x64/lithium-x64.cc

Index: src/x64/lithium-x64.cc
diff --git a/src/x64/lithium-x64.cc b/src/x64/lithium-x64.cc
index 0a2c75cbe68b7bbb276bbf6bce43e2eca031b656..a5675d7a5cb96600a1af22ad894d74eb62cef2fe 100644
--- a/src/x64/lithium-x64.cc
+++ b/src/x64/lithium-x64.cc
@@ -1790,6 +1790,7 @@ LInstruction* LChunkBuilder::DoLoadKeyedFastElement(
 
 LInstruction* LChunkBuilder::DoLoadPixelArrayElement(
     HLoadPixelArrayElement* instr) {
+  Abort("Pixel array loads in generated code cause segfaults (danno)");
   ASSERT(instr->representation().IsInteger32());
   ASSERT(instr->key()->representation().IsInteger32());
   LOperand* external_pointer =
@@ -1831,6 +1832,7 @@ LInstruction* LChunkBuilder::DoStoreKeyedFastElement(
 
 LInstruction* LChunkBuilder::DoStorePixelArrayElement(
     HStorePixelArrayElement* instr) {
+  Abort("Pixel array stores in generated code sometimes segfaults (danno)");
   ASSERT(instr->value()->representation().IsInteger32());
   ASSERT(instr->external_pointer()->representation().IsExternal());
   ASSERT(instr->key()->representation().IsInteger32());