Update binaryen to latest nightly; Source map support

std/assembly/allocator/tlsf.ts

@@ -0,0 +1,10 @@
+// Re-export for now, so there's just one source file being worked on
+
+export {
+  allocate_memory,
+  free_memory
+} from "../../../examples/tlsf/assembly/tlsf";
+
+export function reset_memory(): void {
+  throw new Error("not supported");
+}