fix Qwen3.5 chat template bugs

Author: alcoftTAO

llama_cpp/llama_chat_format.py

@@ -5001,7 +5001,7 @@ class Qwen35ChatHandler(MTMDChatHandler):
         "            {{- '<|im_start|>' + message.role + '\n' + content -}}"
         "        {%- endif -%}"
         "        {%- if message.tool_calls and message.tool_calls is iterable and message.tool_calls is not mapping -%}"
-        "            {%- for tool_call in message.tool_call -%}"
+        "            {%- for tool_call in message.tool_calls -%}"
         "                {%- if tool_call.function is defined -%}"
         "                    {%- set tool_call = tool_call.function -%}"
         "                {%- endif -%}"
@@ -5016,7 +5016,7 @@ class Qwen35ChatHandler(MTMDChatHandler):
         "                {%- endif -%}"
         "                {%- if tool_call.arguments is defined -%}"
         "                    {%- for (args_name, args_value) in tool_calls.arguments | items -%}"
-        "                        {{- '<parameter=' + args.name + '>\n' -}}"
+        "                        {{- '<parameter=' + args_name + '>\n' -}}"
         "                        {%- set args_value = args_value | tojson | safe if args_value is mapping or args_value is sequence and args_value is not string else args_value | string -%}"
         "                        {{- args_value -}}"
         "                        {{- '\n</parameter>' -}}"