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Merge branch '6.4' into 7.0

* 6.4: [ExpressionLanguage] Mention parsing and linting add missing return statement

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Original file line number	Diff line number	Diff line change
`@@ -92,6 +92,26 @@ can chain multiple coalescing operators.`
`92`	`92`	* ``foo[3] ?? 'no'``
`93`	`93`	* ``foo.baz ?? foo['baz'] ?? 'no'``
`94`	`94`
	`95`	`+Parsing and Linting Expressions`
	`96`	`+...............................`
	`97`	`+`
	`98`	`+The ExpressionLanguage component provides a way to parse and lint expressions.`
	`99`	+The:method:`Symfony\\Component\\ExpressionLanguage\\ExpressionLanguage::parse`
	`100`	+method returns a:class:`Symfony\\Component\\ExpressionLanguage\\ParsedExpression`
	`101`	`+instance that can be used to inspect and manipulate the expression. The`
	`102`	+:method:`Symfony\\Component\\ExpressionLanguage\\ExpressionLanguage::lint`, on the
	`103`	`+other hand, returns a boolean indicating if the expression is valid or not::`
	`104`	`+`
	`105`	`+ use Symfony\Component\ExpressionLanguage\ExpressionLanguage;`
	`106`	`+`
	`107`	`+ $expressionLanguage = new ExpressionLanguage();`
	`108`	`+`
	`109`	`+ var_dump($expressionLanguage->parse('1 + 2'));`
	`110`	`+ // displays the AST nodes of the expression which can be`
	`111`	`+ // inspected and manipulated`
	`112`	`+`
	`113`	`+ var_dump($expressionLanguage->lint('1 + 2')); // displays true`
	`114`	`+`
`95`	`115`	`Passing in Variables`
`96`	`116`	`--------------------`
`97`	`117`

Lines changed: 1 addition & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -509,7 +509,7 @@ like this::`
`509`	`509`	`$cloner = new VarCloner();`
`510`	`510`	`$dumper = 'cli' === PHP_SAPI ? new CliDumper() : new HtmlDumper();`
`511`	`511`
`512`		`- $dumper->dump($cloner->cloneVar($var));`
	`512`	`+return$dumper->dump($cloner->cloneVar($var));`
`513`	`513`	`});`
`514`	`514`
`515`	`515`	`Cloners`

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