remove floatToIntBits on slop in hashCode

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@330933 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/lucene/search/PhraseQuery.java

@@ -291,7 +291,7 @@ public class PhraseQuery extends Query {
   /** Returns a hash code value for this object.*/
   public int hashCode() {
     return Float.floatToIntBits(getBoost())
-      ^ Float.floatToIntBits(slop)
+      ^ slop
       ^ terms.hashCode()
       ^ positions.hashCode();
   }