Disable special handling of flooring division by constant until it is fixed for real.

src/a64/lithium-a64.cc

Index: src/a64/lithium-a64.cc
diff --git a/src/a64/lithium-a64.cc b/src/a64/lithium-a64.cc
index 2f2061f3dfcb0627cb292d9a8de532541070b1ab..8307882a5bbddf3f6b2284e32da282d786c92c1b 100644
--- a/src/a64/lithium-a64.cc
+++ b/src/a64/lithium-a64.cc
@@ -1788,8 +1788,8 @@ LInstruction* LChunkBuilder::DoFlooringDivI(HMathFloorOfDiv* instr) {
 LInstruction* LChunkBuilder::DoMathFloorOfDiv(HMathFloorOfDiv* instr) {
   if (instr->RightIsPowerOf2()) {
     return DoFlooringDivByPowerOf2I(instr);
-  } else if (instr->right()->IsConstant()) {
-    return DoFlooringDivByConstI(instr);
+  } else if (false && instr->right()->IsConstant()) {
+    return DoFlooringDivByConstI(instr);  // TODO(svenpanne) Fix and re-enable.
   } else {
     return DoFlooringDivI(instr);
   }