### Godot version

v4.0.beta13.official [caacade56]

### System information

Linux Ubuntu 20.04 with Unity desktop

### Issue description

When calling an undefined function in the shader editor with argument(s), such as `undefined_function(1)`, the error reads:

> Too many arguments for "undefined_function()" call. Expected at most 0 but received 1.

instead of the expected:

> No matching function found for: 'undefined_function'.

This is possibly a regression introduced in https://github.com/godotengine/godot/issues/18225, since the latter was focused on the arguments part.

To avoid such regression in the future, consider adding a unit test with this case (and, in fact, unit tests for the other signature errors too if there are not already).

### Steps to reproduce

1. Create a shader resource and open the shader editor
2. Enter `undefined_function(1);` in the fragment() definition

### Minimal reproduction project

N/A
p_block->block_tag = SubClassTag::TAG_ARRAY;
					}
					Node *call_expression = _parse_and_reduce_expression(p_block, p_function_info);
					if (p_block != nullptr) {
						p_block->block_tag = SubClassTag::TAG_GLOBAL;
					}
					if (!call_expression) {
						return nullptr;
					}
					expr = call_expression;
					break;
				}
				StringName identifier;
				if (_get_completable_identifier(p_block, dt == TYPE_STRUCT ? COMPLETION_STRUCT : COMPLETION_INDEX, identifier)) {
					if (dt == TYPE_STRUCT) {
						completion_struct = st;
					} else {
						completion_base = dt;
					}
				}
				if (identifier == StringName()) {
					_set_error(RTR("Expected an identifier as a member."));
					return nullptr;
				}
				String ident = identifier;
				bool ok = true;
				bool repeated = false;
				DataType member_type = TYPE_VOID;
				StringName member_struct_name = "";
				int array_size = 0;