fix typeToString so that functions with 0 args work

src/compiler.c

@@ -52,6 +52,11 @@ char* typeToString(CometType type) {
             written += snprintf(buffer + written, remaining, "%s(", f->name);
             remaining = buffsize - written;
 
+            if (f->argCount == 0) {
+                written += snprintf(buffer + written, remaining, ") -> ");
+                remaining = buffsize - written;
+            }
+
             for (size_t i = 0; i < f->argCount; i++) {
                 if (i >= f->argCount-1) // end of args
 

test.comet

@@ -1,13 +1,3 @@
-struct Foo <T> {
-    T value
-
-    init(T value) {
-        self.value = value
-    }
-}
-
-func main() -> int {
-    Foo<int> x = new Foo<int>(123)
-
-    return x.value
+func main() -> void {
+    drop main
 }