### 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
case '%': {
				if (GETCHAR(0) == '=') {
					char_idx++;
					return _make_token(TK_OP_ASSIGN_MOD);
				}
				return _make_token(TK_OP_MOD);
			} break;
			case '@': {
				if (GETCHAR(0) == '@' && GETCHAR(1) == '>') {
					char_idx += 2;
					LocalVector<char32_t> incp;
					while (GETCHAR(0) != '\n') {
						incp.push_back(GETCHAR(0));
						char_idx++;
					}
					incp.push_back(0); 
					String include_path(incp.ptr());
					include_positions.write[include_positions.size() - 1].line = tk_line;
					FilePosition fp;
					fp.file = include_path;
					fp.line = 0;
					tk_line = 0;
					include_positions.push_back(fp);
				} else if (GETCHAR(0) == '@' && GETCHAR(1) == '<') {
					if (include_positions.size() == 1) {
						return _make_token(TK_ERROR, "Invalid include exit hint @@< without matching enter hint.");
					}
					char_idx += 2;
					include_positions.resize(include_positions.size() - 1); 
					tk_line = include_positions[include_positions.size() - 1].line - 1;