cmd/tests: Test nested loop variables expansion.

programs/cmd/tests/test_builtins.cmd

@@ -1403,6 +1403,18 @@ goto :endForTestFun2
 echo %1 %2
 goto :eof
 :endForTestFun2
+echo --- nested FORs and args tempering
+set "WINE_ARGS= -foo=bar -x=y"
+:test_for_loop_params_parse
+for /F "tokens=1,* delims= " %%a in ("%WINE_ARGS%") do (
+    for /F "tokens=1,2 delims==" %%1 in ("%%a") do (
+        echo inner argument {%%1, %%2}
+    )
+    set "WINE_ARGS=%%b"
+    goto :test_for_loop_params_parse
+)
+set "WINE_ARGS="
+
 mkdir foobar & cd foobar
 mkdir foo
 mkdir bar

programs/cmd/tests/test_builtins.cmd.exp

@@ -1000,6 +1000,9 @@ A C
 A D
 B C
 B D
+--- nested FORs and args tempering
+@todo_wine@inner argument {-foo, bar}
+@todo_wine@inner argument {-x, y}
 --- basic wildcards
 bazbaz
 --- wildcards in subdirs