optional-parameter.php.test
246e604a070fmaster

optional-parameter.php.test
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			<?php

			function a(?int $x) {}
			function b(?SomeClass $x) {}
			~~~~~~~~~~
			pass
			~~~~~~~~~~
			* n_PROGRAM
			* n_STATEMENT_LIST
			* n_OPEN_TAG
			> <?php
			> "\n\n"
			* n_STATEMENT
			* n_FUNCTION_DECLARATION
			* n_EMPTY
			* n_EMPTY
			* n_STRING
			> a
			* n_DECLARATION_PARAMETER_LIST
			> (
			> ?
			* n_DECLARATION_PARAMETER
			* n_NULLABLE_TYPE
			* n_CLASS_NAME
			> int
			> " "
			* n_VARIABLE
			> $x
			* n_EMPTY
			> )
			* n_EMPTY
			* n_EMPTY
			* n_STATEMENT_LIST
			> {
			> }
			> "\n"
			* n_STATEMENT
			* n_FUNCTION_DECLARATION
			* n_EMPTY
			* n_EMPTY
			* n_STRING
			> b
			* n_DECLARATION_PARAMETER_LIST
			> (
			> ?
			* n_DECLARATION_PARAMETER
			* n_NULLABLE_TYPE
			* n_CLASS_NAME
			> SomeClass
			> " "
			* n_VARIABLE
			> $x
			* n_EMPTY
			> )
			* n_EMPTY
			* n_EMPTY
			* n_STATEMENT_LIST
			> {
			> }
			> "\n"