newruntime: added a basic table test

tests/destructor/tsimpletable.nim

@@ -0,0 +1,24 @@
+discard """
+  cmd: '''nim c --newruntime $file'''
+  output: '''(field: "value")
+3 3  new: 0'''
+"""
+
+import core / allocators
+import system / ansi_c
+
+import tables
+
+type
+  Node = ref object
+    field: string
+
+proc main =
+  var w = newTable[string, owned Node]()
+  w["key"] = Node(field: "value")
+  echo w["key"][]
+
+main()
+
+let (a, d) = allocCounters()
+discard cprintf("%ld %ld  new: %ld\n", a, d, allocs)