multiline strings should be indented and grouped

[Janther]

⚠️ ANTLR still uses the old format. Since it's deprecated and it's just a format difference which doesn't contain any error I'm ok with ignoring it for now.

// Original
contract MultipartStrings {
  function multilineString() {
    bytes hex1 = hex'DeadBeef00' hex'DeadBeef01' hex'DeadBeef02' hex'DeadBeef03';
    hex1 = hex'DeadBeef0a' hex'DeadBeef0b' hex'DeadBeef0c' hex'DeadBeef0d';
    string str = 'DeadBeef00' 'DeadBeef01' 'DeadBeef02' 'DeadBeef03';
    str = 'DeadBeef0a' 'DeadBeef0b' 'DeadBeef0c' 'DeadBeef0d';
    string uni = unicode'DeadBeef00🦄' unicode'DeadBeef01🦄' unicode'DeadBeef02🦄' unicode'DeadBeef03🦄';
    uni = unicode'DeadBeef0a🦄' unicode'DeadBeef0b🦄' unicode'DeadBeef0c🦄' unicode'DeadBeef0d🦄';
  }
}

// Before
contract MultipartStrings {
  function multilineString() {
        bytes hex1 = hex"DeadBeef00"
        hex"DeadBeef01"
        hex"DeadBeef02"
        hex"DeadBeef03";
        hex1 = hex"DeadBeef0a"
        hex"DeadBeef0b"
        hex"DeadBeef0c"
        hex"DeadBeef0d";
        string str = "DeadBeef00"
        "DeadBeef01"
        "DeadBeef02"
        "DeadBeef03";
        str = "DeadBeef0a"
        "DeadBeef0b"
        "DeadBeef0c"
        "DeadBeef0d";
        string uni = unicode"DeadBeef00🦄"
        unicode"DeadBeef01🦄"
        unicode"DeadBeef02🦄"
        unicode"DeadBeef03🦄";
        uni = unicode"DeadBeef0a🦄"
        unicode"DeadBeef0b🦄"
        unicode"DeadBeef0c🦄"
        unicode"DeadBeef0d🦄";
    }
}

// New
contract MultipartStrings {
    function multilineString() {
        bytes hex1 =
            hex"DeadBeef00"
            hex"DeadBeef01"
            hex"DeadBeef02"
            hex"DeadBeef03";
        hex1 =
            hex"DeadBeef0a"
            hex"DeadBeef0b"
            hex"DeadBeef0c"
            hex"DeadBeef0d";
        string str =
            "DeadBeef00"
            "DeadBeef01"
            "DeadBeef02"
            "DeadBeef03";
        str =
            "DeadBeef0a"
            "DeadBeef0b"
            "DeadBeef0c"
            "DeadBeef0d";
        string uni =
            unicode"DeadBeef00🦄"
            unicode"DeadBeef01🦄"
            unicode"DeadBeef02🦄"
            unicode"DeadBeef03🦄";
        uni =
            unicode"DeadBeef0a🦄"
            unicode"DeadBeef0b🦄"
            unicode"DeadBeef0c🦄"
            unicode"DeadBeef0d🦄";
    }
}

[fvictorio]

Nice!