Update dependency prettier to ^2.8.6

This MR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
prettier (source)	^2.8.4 -> ^2.8.6

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Release Notes

prettier/prettier

v2.8.6

Compare Source

diff

Allow decorators on private members and class expressions (#​14548 by @​fisker)

// Input
class A {
  @​decorator()
  #privateMethod () {}
}

// Prettier 2.8.5
SyntaxError: Decorators are not valid here. (2:3)
  1 | class A {
> 2 |   @​decorator()
    |   ^^^^^^^^^^^^
  3 |   #privateMethod () {}
  4 | }

// Prettier 2.8.6
class A {
  @​decorator()
  #privateMethod() {}
}

v2.8.5

Compare Source

diff

Support TypeScript 5.0 (#​14391 by @​fisker, #​13819 by @​fisker, @​sosukesuzuki)

TypeScript 5.0 introduces two new syntactic features:

• const modifiers for type parameters
• export type * declarations

Add missing parentheses for decorator (#​14393 by @​fisker)

// Input
class Person {
  @​(myDecoratorArray[0])
  greet() {}
}

// Prettier 2.8.4
class Person {
  @​myDecoratorArray[0]
  greet() {}
}

// Prettier 2.8.5
class Person {
  @​(myDecoratorArray[0])
  greet() {}
}

Add parentheses for TypeofTypeAnnotation to improve readability (#​14458 by @​fisker)

// Input
type A = (typeof node.children)[];

// Prettier 2.8.4
type A = typeof node.children[];

// Prettier 2.8.5
type A = (typeof node.children)[];

Support max_line_length=off when parsing .editorconfig (#​14516 by @​josephfrazier)

If an .editorconfig file is in your project and it sets max_line_length=off for the file you're formatting, it will be interpreted as a printWidth of Infinity rather than being ignored (which previously resulted in the default printWidth of 80 being applied, if not overridden by Prettier-specific configuration).

<!-- Input -->
<div className='HelloWorld' title={`You are visitor number ${ num }`} onMouseOver={onMouseOver}/>

<!-- Prettier 2.8.4 -->
<div
  className="HelloWorld"
  title={`You are visitor number ${num}`}
  onMouseOver={onMouseOver}
/>;

<!-- Prettier 2.8.5 -->
<div className="HelloWorld" title={`You are visitor number ${num}`} onMouseOver={onMouseOver} />;

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