stdlib: Inference engine caught some type errors! Also added some hot garbage.

stdlib/std/io.cl

@@ -0,0 +1,19 @@
+//! The IO module contains functions for interacting with
+//! input and output streams
+use super::str::str;
+
+/// Immediately causes program execution to stop
+#[builtin = "panic"]
+fn panic(..args) -> !;
+
+/// Prints whatever you give it
+#[builtin = "print"]
+fn print(..args);
+
+/// Prints whatever you give it, followed by a newline
+#[builtin = "println"]
+fn println(..args);
+
+/// Debug-prints a thing, returning it
+#[builtin = "dbg"]
+fn dbg(arg) -> _ arg