[LuisFigueroaG]

Kotlin only had " as a quote, so a character literal holding one, like '"', opened a string that ran to the next " in the file and turned the comments and blank lines in between into code. For example:

fun isQuote(c: Char): Boolean {
    if (c == '"') {
        return true
    }
    // a comment
    return c == '\''
}

was counted as all code.

This adds ' as a quote, and the backtick too, so the apostrophe in a backticked test name like `it doesn't crash` doesn't open a character literal of its own (adding ' on its own turned such test files into all code). The Kotlin counter behind --exp-per-language-counters gets the same two quotes, so it keeps agreeing with the generic loop. I ran it against okhttp and kotlinx.coroutines with SCC_DIFF_KOTLIN_CORPUS and the two agreed on all 1612 files.

On okhttp this mostly gives back comment and blank lines in files that use '"', such as HttpHeaders.kt and MultipartBody.kt. The one file that got worse is RequestTest.kt, which has a """ raw string containing both " and an apostrophe; raw strings aren't modelled for Kotlin yet, and that would be a separate change.

I explicitly license this contribution under the MIT licence.

[boyter]

TY