overloading of [] for derefence operation should be possible now

tests/accept/run/tgenericassign.nim

@@ -0,0 +1,24 @@
+discard """
+  output: '''came here'''
+"""
+
+type
+  TAny* = object {.pure.}
+    value*: pointer
+    rawType: pointer
+    
+proc newAny(value, rawType: pointer): TAny =
+  result.value = value
+  result.rawType = rawType
+
+var name: cstring = "example"
+
+var ret: seq[tuple[name: string, a: TAny]] = @[]
+for i in 0..8000:
+  var tup = ($name, newAny(nil, nil))
+  assert(tup[0] == "example")
+  ret.add(tup)
+  assert(ret[ret.len()-1][0] == "example")
+
+echo "came here"
+