E0293: missing semicolon after abstract method

TypeScript abstract methods in classes do not have bodies. Therefore, they must end with either a semicolon (;) or a newline. It is a syntax error to omit the semicolon and write something on the same line after the abstract method:

abstract class Container {
  abstract getItem(key: string): number | string void;
}

To fix this error, write a correct type for the method:

abstract class Container {
  abstract getItem(key: string): number | string | void;
}

Introduced in quick-lint-js version 2.10.0.

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