Add global/internal parameters to rhai_fn.

codegen/ui_tests/rhai_fn_global_multiple.rs

@@ -0,0 +1,28 @@
+use rhai::plugin::*;
+
+#[derive(Clone)]
+pub struct Point {
+    x: f32,
+    y: f32,
+}
+
+#[export_module]
+pub mod test_module {
+    pub use super::Point;
+    #[rhai_fn(global, global)]
+    pub fn test_fn(input: Point) -> bool {
+        input.x > input.y
+    }
+}
+
+fn main() {
+    let n = Point {
+        x: 0.0,
+        y: 10.0
+    };
+    if test_module::test_fn(n) {
+        println!("yes");
+    } else {
+        println!("no");
+    }
+}

codegen/ui_tests/rhai_fn_global_multiple.stderr

@@ -0,0 +1,11 @@
+error: conflicting namespace
+  --> $DIR/rhai_fn_global_multiple.rs:12:23
+   |
+12 |     #[rhai_fn(global, global)]
+   |                       ^^^^^^
+
+error[E0433]: failed to resolve: use of undeclared type or module `test_module`
+  --> $DIR/rhai_fn_global_multiple.rs:23:8
+   |
+23 |     if test_module::test_fn(n) {
+   |        ^^^^^^^^^^^ use of undeclared type or module `test_module`