Indentation written after a multi-line string literal

[lucaswerkmeister]

String s = "a
            b".string;

→

String s = "a
            b"    .string;

[lucaswerkmeister]

Not too hard… writeIndentation() takes care to not write indentation if we’re not at the start of a line, but some code paths bypass it. Let’s move that logic into the countingWriter.