style fix

Author: cosminbasca

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/code/PCode.java

@@ -400,18 +400,15 @@ private Arity.KeywordName[] getKeywordNames() {
     }
 
     public boolean isGenerator() {
-        long flags = getFlags();
-        return (flags & (1 << FLAG_POS_GENERATOR)) > 0;
+        return (getFlags() & (1 << FLAG_POS_GENERATOR)) > 0;
     }
 
     public boolean takesVarArgs() {
-        long flags = getFlags();
-        return (flags & (1 << FLAG_POS_VAR_ARGS)) > 0;
+        return (getFlags() & (1 << FLAG_POS_VAR_ARGS)) > 0;
     }
 
     public boolean takesVarKeywordArgs() {
-        long flags = getFlags();
-        return (flags & (1 << FLAG_POS_VAR_KW_ARGS)) > 0;
+        return (getFlags() & (1 << FLAG_POS_VAR_KW_ARGS)) > 0;
     }
 
     private int getMinNumOfPositionalArgs() {

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/function/AbstractFunctionBuiltins.java

@@ -270,7 +270,7 @@ public abstract static class GetDefaultsNode extends PythonBinaryBuiltinNode {
         protected final ConditionProfile nullDefaultsProfile = ConditionProfile.createBinaryProfile();
 
         @TruffleBoundary
-        private Object[] extractDefaults(PFunction function) {
+        private static Object[] extractDefaults(PFunction function) {
             List<Object> defaultValues = new ArrayList<>();
             List<ReadKeywordNode> readKeywordNodes = NodeUtil.findAllNodeInstances(function.getFunctionRootNode(), ReadKeywordNode.class);
             for (ReadKeywordNode readKeywordNode : readKeywordNodes) {