avoid_escaping_inner_quotes

Unnecessary escape of '{0}'.

The analyzer produces this diagnostic when string interpolation or string literals use escaped inner quotes that can be avoided by choosing a different set of surrounding quotes.

The following code produces this diagnostic because single quotes are escaped inside a single-quoted string:

var s = 'It\'s not fun';

Change the surrounding quotes so that you don't need to escape the inner quotes:

var s = "It's not fun";