fix INTERNAL param specs

com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/base/Crossprod.java

@@ -34,7 +34,7 @@ import com.oracle.truffle.r.runtime.data.*;
 import com.oracle.truffle.r.runtime.data.model.*;
 import com.oracle.truffle.r.runtime.ops.na.*;
 
-@RBuiltin(name = "crossprod", kind = INTERNAL)
+@RBuiltin(name = "crossprod", kind = INTERNAL, parameterNames = {"x", "y"})
 public abstract class Crossprod extends RBuiltinNode {
 
     // TODO: this is supposed to be slightly faster than t(x) %*% y but for now it should suffice

com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/base/FileFunctions.java

@@ -80,7 +80,7 @@ public class FileFunctions {
         }
     }
 
-    @RBuiltin(name = "file.info", kind = INTERNAL)
+    @RBuiltin(name = "file.info", kind = INTERNAL, parameterNames = {"fn"})
     public abstract static class FileInfo extends RBuiltinNode {
         private static final String[] NAMES = new String[]{"size", "isdir", "mode", "mtime", "ctime", "atime", "uid", "gid", "uname", "grname"};
         private static final RStringVector NAMES_VECTOR = RDataFactory.createStringVector(NAMES, RDataFactory.COMPLETE_VECTOR);