Add a basic test for function calls.

core/tests/regression_tests.rs

@@ -228,6 +228,7 @@ swf_tests! {
     (context_menu, "avm1/context_menu", 1),
     (context_menu_item, "avm1/context_menu_item", 1),
     (as3_hello_world, "avm2/hello_world", 1),
+    (as3_function_call, "avm2/function_call", 1),
 }
 
 // TODO: These tests have some inaccuracies currently, so we use approx_eq to test that numeric values are close enough.

core/tests/swfs/avm2/function_call/Test.as

@@ -0,0 +1,11 @@
+package {
+	public class Test {}
+}
+
+function testfunc(v1, v2, v3) {
+	trace(v1);
+	trace(v2);
+	trace(v3);
+}
+
+testfunc("arg1", "arg2", "arg3");

core/tests/swfs/avm2/function_call/output.txt

@@ -0,0 +1,3 @@
+arg1
+arg2
+arg3