Function is_obvious_single_param

src/inlay_hints.rs:538–637

Check whether a single-parameter call has an obvious relationship between the function/method name and the parameter, making the hint redundant noise. For example, `strlen($text)` — the function name already implies the parameter is a string.

(call_expression: &str, _param_name: &str)

/// For example, `strlen($text)` — the function name already implies
/// the parameter is a string.
fn is_obvious_single_param(call_expression: &str, _param_name: &str) -> bool {
    // Extract the function/method name from the call expression.
    let func_name = if let Some(pos) = call_expression.rfind("->") {
        &call_expression[pos + 2..]
    } else if let Some(pos) = call_expression.rfind("::") {
        &call_expression[pos + 2..]
    } else if let Some(name) = call_expression.strip_prefix("new ") {
        // Constructor calls: `new Foo($bar)` — always show.
        let _ = name;
        return false;
    } else {
        call_expression
    };

    // Common single-param functions where the hint is noise.
    matches!(
        func_name.to_ascii_lowercase().as_str(),
        "count"
            | "strlen"
            | "isset"
            | "empty"
            | "unset"
            | "print"
            | "echo"
            | "var_dump"
            | "print_r"
            | "var_export"
            | "intval"
            | "floatval"
            | "strval"
            | "boolval"
            | "trim"
            | "ltrim"
            | "rtrim"
            | "strtolower"
            | "strtoupper"
            | "ucfirst"
            | "lcfirst"
            | "abs"
            | "ceil"
            | "floor"
            | "round"
            | "is_null"
            | "is_array"
            | "is_string"
            | "is_int"
            | "is_integer"
            | "is_float"
            | "is_double"
            | "is_bool"
            | "is_numeric"
            | "is_object"
            | "is_callable"
            | "json_encode"
            | "json_decode"
            | "serialize"
            | "unserialize"
            | "base64_encode"