Tweaked FlooringDiv back to TruncatingDiv again.

src/x64/macro-assembler-x64.h

Index: src/x64/macro-assembler-x64.h
diff --git a/src/x64/macro-assembler-x64.h b/src/x64/macro-assembler-x64.h
index 90d9f52850eb5b0c35dc41982dae02736c593f9f..d5a028c8409d088c260783ff50bd022d3829a11e 100644
--- a/src/x64/macro-assembler-x64.h
+++ b/src/x64/macro-assembler-x64.h
@@ -1367,9 +1367,9 @@ class MacroAssembler: public Assembler {
                                   Register filler);
 
 
-  // Emit code for a flooring division by a constant. The dividend register is
+  // Emit code for a truncating division by a constant. The dividend register is
   // unchanged, the result is in rdx, and rax gets clobbered.
-  void FlooringDiv(Register dividend, int32_t divisor);
+  void TruncatingDiv(Register dividend, int32_t divisor);
 
   // ---------------------------------------------------------------------------
   // StatsCounter support