added tests for == and $

tests/run/tobject.nim

@@ -0,0 +1,20 @@
+import unittest
+
+type Obj = object
+  foo: int
+
+proc makeObj(x: int): ref Obj = 
+  new(result)
+  result.foo = x
+
+proc initObject(x: int): Obj = 
+  result.foo = x
+
+suite "object basic methods":
+  test "it should convert an objcet to a string":
+    var obj = makeObj(1)
+    discard $obj
+  test "it should test equality based on fields":
+    check(initObj(1) == initObj(1))
+  test "it should test equality based on fields for refs too":
+    check(makeObj(1) == makeObj(1))