Expose "getNewLineCharacter" function

[devversion]

Suggestion

Make ts.getNewLineCharacter public

Use Cases

This is useful if developers create their own FormatDiagnosticsHost, but don't want to implement the logic to determine the newLine string based on the newLine compiler option.

Examples

    const formatHost: ts.FormatDiagnosticsHost = {
      getCurrentDirectory: () => projectDir || ts.sys.getCurrentDirectory(),
      getCanonicalFileName: fileName => fileName,
      getNewLine: () => ts.getNewLineCharacter(formatOptions)
    };

[AviVahl]

I second this request. Function is useful when creating hosts.