patch 8.2.2774: Vim9: cannot import an existing name even when using "as"

Problem:    Vim9: cannot import an existing name even when using "as".
Solution:   Do not check for an existing name when using "as". (closes #8113)
diff --git a/src/version.c b/src/version.c
index 113ba8f..5d26348 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2774,
+/**/
     2773,
 /**/
     2772,