+#include "config.h"
+#include "wine/port.h"
+
+#include <math.h>

Those are not needed, AFAICS.

diff --git a/dlls/jscript/global.c b/dlls/jscript/global.c
index 33de641483..57cc275efd 100644
--- a/dlls/jscript/global.c
+++ b/dlls/jscript/global.c
@@ -116,8 +116,9 @@ static WCHAR int_to_char(int i)
 static HRESULT JSGlobal_Enumerator(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
         jsval_t *r)
 {
-    FIXME("\n");
-    return E_NOTIMPL;
+    TRACE("JSGlobal_Enumerator\n");
+
+    return EnumeratorConstr_value(ctx, jsthis, flags, argc, argv, r);
 }

The way you handled it in v1 was better as it covered more corner cases. Please use jsdisp_define_data_property() in init_constructors() to set the constructor on global object.

Thanks,

Jacek