patch 8.2.2760: Vim9: no error for changing a for loop variablev8.2.2760

Problem:    Vim9: no error for changing a for loop variable.
Solution:   Make the loop variable read-only. (issue #8102)

1 files changed, 1 insertions, 0 deletions

diff --git a/src/vim.h b/src/vim.h
index baa3526d0f..4c9e095a10 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -2158,6 +2158,7 @@ typedef enum {
 #define ASSIGN_DECL	0x08  // may declare variable if it does not exist
 #define ASSIGN_UNPACK	0x10  // using [a, b] = list
 #define ASSIGN_NO_MEMBER_TYPE 0x20 // use "any" for list and dict member type
+#define ASSIGN_FOR_LOOP 0x40 // assigning to loop variable
 
 #include "ex_cmds.h"	    // Ex command defines
 #include "spell.h"	    // spell checking stuff