Squashed commit of the following:

commit bdff436162943f7665b645c4716e29a994855806
Author: mtso <[email protected]>
Date:   Sat Aug 14 17:24:33 2021 -0700

    Change module resolution

commit 95f2189c649ffe170f8eb5f59ea2586ab1325aeb
Author: mtso <[email protected]>
Date:   Fri Aug 13 10:28:38 2021 -0700

    Improve builtins

commit ed8cdacc56b9490eebfb600398313a0de4b0f568
Author: mtso <[email protected]>
Date:   Thu Aug 12 21:26:25 2021 -0700

    Update tail-call opt and improve builtins for wasm loading

bin/obi

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+script_dir=$(dirname "$0")
+deno run --quiet --allow-all --unstable ${script_dir}/../obi.ts $@

docs/fileserver.obi

@@ -53,7 +53,7 @@ fun split(source, needle) {
     };
 
     pieces.(pieceIdx) = strslice(source, start, len);
-    pieces.len = pieceIdx;
+    pieces.len = pieceIdx + 1;
     return pieces;
 }
 

docs/server.obi

@@ -29,7 +29,7 @@ fun split(source, needle) {
     };
 
     pieces.(pieceIdx) = strslice(source, start, len);
-    pieces.len = pieceIdx;
+    pieces.len = pieceIdx + 1;
     return pieces;
 }
 

notes.md

@@ -206,3 +206,20 @@ Values
 - tables
 - byte arrays (no literal representation, must instantiate with
   new_buffer(<cap>))
+
+# testing?
+
+```obi
+pub fun __test__() {
+    test := mod("std/test.obi");
+    suite := test.new_suite();
+    suite.test("parses") fun(t) {
+        string := json.stringify([foo = "foo"]);
+        t.assertEquals("{\"foo\":\"foo\"}", string);
+    };
+    suite.testAsync("parses") fun(t) {
+        t.done();
+    };
+    suite.run();
+};
+```