Fix style

Author: msimacek

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/capi/PyMemoryViewBufferWrapper.java

@@ -132,7 +132,7 @@ protected Object readMember(String member,
     }
 
     @GenerateUncached
-    static abstract class IntArrayToNativePySSizeArray extends Node {
+    abstract static class IntArrayToNativePySSizeArray extends Node {
         public abstract Object execute(int[] array);
 
         @Specialization

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/common/SequenceStorageNodes.java

@@ -1204,6 +1204,7 @@ public static SetItemNode create(String invalidItemErrorMessage) {
     public abstract static class SetItemScalarNode extends Node {
 
         public abstract void execute(SequenceStorage s, int idx, Object value);
+
         public abstract void execute(SequenceStorage s, int idx, byte value);
 
         @Specialization

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/memoryview/MemoryViewNodes.java

@@ -873,7 +873,7 @@ public abstract static class ReleaseBufferOfManagedObjectNode extends Node {
         public abstract void execute(Object object);
 
         @Specialization
-        static void bytearray(PByteArray object) {
+        static void bytearray(@SuppressWarnings("unused") PByteArray object) {
             // TODO
         }