typetraits module and tests

tests/run/ttypetraits.nim

@@ -0,0 +1,24 @@
+discard """
+  msg:    "int\nstring\nTBar[int]"
+  output: "int\nstring\nTBar[int]"
+"""
+
+import typetraits
+
+proc foo(x) =
+  static:
+    var t = type(x)
+    echo t.name
+
+  echo x.type.name
+
+type
+  TBar[U] = object
+    x: U
+
+var bar: TBar[int]
+
+foo 10
+foo "test"
+foo bar
+