Fixed: @ref did not generate self.x for an ivar x

Objective-J/ObjJAcornCompiler.js

@@ -2381,9 +2381,9 @@ Reference: function(node, st, c) {
         buffer.concat(" "); // Add an extra space if it looks something like this: "return(<expression>)". No space between return and expression.
     }
     buffer.concat("function(__input) { if (arguments.length) return ");
-    buffer.concat(node.element.name);
+    c(node.element, st, "Expression");
     buffer.concat(" = __input; return ");
-    buffer.concat(node.element.name);
+    c(node.element, st, "Expression");
     buffer.concat("; }");
     if (!generate) compiler.lastPos = node.end;
 },

Tests/Objective-J/Preprocessor/OutputTests/Misc/ref-self.j

@@ -0,0 +1,11 @@
+@implementation TC
+{
+    id _control;
+}
+
+- (id)a
+{
+    @ref(_control);
+}
+
+@end

Tests/Objective-J/Preprocessor/OutputTests/Misc/ref-self.js

@@ -0,0 +1,9 @@
+{var the_class = objj_allocateClassPair(Nil, "TC"),
+meta_class = the_class.isa;class_addIvars(the_class, [new objj_ivar("_control")]);objj_registerClassPair(the_class);
+class_addMethods(the_class, [new objj_method(sel_getUid("a"), function $TC__a(self, _cmd)
+{
+    function(__input) { if (arguments.length) return self._control = __input; return self._control; };
+}
+
+,["id"])]);
+}

Tests/Objective-J/Preprocessor/OutputTests/OutputTest.j

@@ -22,6 +22,7 @@ var FILENAMES = [
         "Misc/regex-simple-char-classes",
         "Misc/empty-loops",
         "Misc/empty-statements",
+        "Misc/ref-self",
 ];
 
 @implementation OutputTest : OJTestCase