Rename OperationFirstOrDefaultTest and OperationLastTest to OperatorFirstOrDefaultTest and OperatorLastTest

Author: zsxwing

rxjava-core/src/test/java/rx/operators/OperationFirstOrDefaultTest.java renamed to rxjava-core/src/test/java/rx/operators/OperatorFirstTest.java

@@ -30,7 +30,7 @@
 import rx.Observer;
 import rx.functions.Func1;
 
-public class OperationFirstOrDefaultTest {
+public class OperatorFirstTest {
 
     @Mock
     Observer<String> w;

rxjava-core/src/test/java/rx/operators/OperationLastTest.java renamed to rxjava-core/src/test/java/rx/operators/OperatorLastTest.java

@@ -30,7 +30,7 @@
 import rx.Observer;
 import rx.functions.Func1;
 
-public class OperationLastTest {
+public class OperatorLastTest {
 
     @Test
     public void testLastWithElements() {