Add missing @NeverDefault annotations

Author: eregon

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/BuiltinFunctions.java

@@ -1198,10 +1198,12 @@ private RuntimeException raiseInvalidSyntax(TruffleString filename, String forma
             throw raiseSyntaxError(ParserCallbacks.ErrorType.Syntax, sourceRange, message, source, PythonOptions.isPExceptionWithJavaStacktrace(context.getLanguage()));
         }
 
+        @NeverDefault
         public static CompileNode create(boolean mapFilenameToUri) {
             return BuiltinFunctionsFactory.CompileNodeFactory.create(mapFilenameToUri, false, new ReadArgumentNode[]{});
         }
 
+        @NeverDefault
         public static CompileNode create(boolean mapFilenameToUri, boolean lstrip) {
             return BuiltinFunctionsFactory.CompileNodeFactory.create(mapFilenameToUri, lstrip, new ReadArgumentNode[]{});
         }

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/ExecutionContext.java

@@ -87,6 +87,7 @@
 public abstract class ExecutionContext {
     @GenerateUncached
     public abstract static class CallContext extends Node {
+        @NeverDefault
         public static CallContext create() {
             return CallContextNodeGen.create();
         }