Font lock confused by string literal

[dabrahams]

This code doesn't render correctly.

    swiftCode.append(
      #"print(""""#
        + "\n\(escaped)\n"
        + #"""", terminator: "")"#)

    return swiftCode.joined(separator: "\n")

The last line is rendered as swift-mode:string-face.

[taku0]

Confirmed. Opening delimiters of multiline strings (""") should be valid only if followed by line breaks. I'll fix this.