Rename ReverseCondition to CommuteCondition, a more standard term.

src/x87/assembler-x87.h

Index: src/x87/assembler-x87.h
diff --git a/src/x87/assembler-x87.h b/src/x87/assembler-x87.h
index 8bcf134da890568c8f935933054f94830d33fb7a..1fd724feadbb673698dabf39b9a6c3c242605069 100644
--- a/src/x87/assembler-x87.h
+++ b/src/x87/assembler-x87.h
@@ -238,8 +238,8 @@ 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;