add test skeleton for types and add jsdoc comments to types

test/types.js

@@ -0,0 +1,55 @@
+var assert = require("assert");
+var t      = require("../lib/6to5/types");
+
+suite("types", function () {
+  test("isFalsyExpression", function () {
+    assert.ok(t.isFalsyExpression(t.literal("")));
+    assert.ok(t.isFalsyExpression(t.literal(null)));
+    assert.ok(t.isFalsyExpression(t.literal(0)));
+    assert.ok(t.isFalsyExpression(t.identifier("undefined")));
+
+    assert.ok(!t.isFalsyExpression(t.literal("foobar")));
+    assert.ok(!t.isFalsyExpression(t.literal(5)));
+    assert.ok(!t.isFalsyExpression(t.identifier("foobar")));
+  });
+
+  test("toSequenceExpression");
+
+  test("shallowEqual");
+
+  test("appendToMemberExpression");
+
+  test("prependToMemberExpression");
+
+  test("isDynamic");
+
+  test("isReferenced");
+
+  test("isValidIdentifier");
+
+  test("toIdentifier");
+
+  test("ensureBlock");
+
+  test("toStatement");
+
+  test("toBlock");
+
+  test("getUid");
+
+  test("getIds");
+
+  test("isLet");
+
+  test("isVar");
+
+  test("removeComments");
+
+  test("inheritsComments");
+
+  test("inherits");
+
+  test("getSpecifierName");
+
+  test("isSpecifierDefault");
+});