Rename ReverseCondition to CommuteCondition, a more standard term.

src/ia32/assembler-ia32.h

Index: src/ia32/assembler-ia32.h
diff --git a/src/ia32/assembler-ia32.h b/src/ia32/assembler-ia32.h
index f5bdc68a37869e21067c62d59ac25b19f4b2b210..fd459fbc8d85b68fd54aa9fc482ec2fd5503f8e6 100644
--- a/src/ia32/assembler-ia32.h
+++ b/src/ia32/assembler-ia32.h
@@ -246,8 +246,8 @@ inline Condition NegateCondition(Condition cc) {
 }
 
 
-// Corresponds to transposing the operands of a comparison.
-inline Condition ReverseCondition(Condition cc) {
+// Commute a condition such that a cond b == b cond' b.
+inline Condition CommuteCondition(Condition cc) {
   switch (cc) {
     case below:
       return above;