Rename zend-test to zend_test

The extension name should match the name of the ext/ directory,
otherwise it will not get picked up by run-tests. It would be possible
to remap this in run-tests, but I think it's better to rename the
extension to follow the standard format. Other extensions also
use underscore instead of hyphen (e.g. pdo_mysql and not pdo-mysql).
Of course, ./configure options are always hyphenated.

Author: nikic

Zend/tests/attributes/016_custom_attribute_validation.phpt

@@ -2,8 +2,8 @@
 Attribute validation callback of internal attributes.
 --SKIPIF--
 <?php
-if (!extension_loaded('zend-test')) {
-    echo "skip requires zend-test extension\n";
+if (!extension_loaded('zend_test')) {
+    echo "skip requires zend_test extension\n";
 }
 --FILE--
 <?php

Zend/tests/bug78239.phpt

@@ -1,7 +1,7 @@
 --TEST--
 Bug #78239: Deprecation notice during string conversion converted to exception hangs
 --SKIPIF--
-<?php if (!extension_loaded("zend-test")) die("skip requires zend-test extension"); ?>
+<?php if (!extension_loaded("zend_test")) die("skip requires zend_test extension"); ?>
 --FILE--
 <?php
 function handleError($level, $message, $file = '', $line = 0, $context = [])

Zend/tests/bug78335_2.phpt

@@ -1,7 +1,7 @@
 --TEST--
 Bug #78335: Static properties containing cycles report as leak (internal class variant)
 --SKIPIF--
-<?php if (!extension_loaded("zend-test")) die("skip requires zend-test"); ?>
+<?php if (!extension_loaded("zend_test")) die("skip requires zend_test"); ?>
 --FILE--
 <?php
 

Zend/tests/call_to_deprecated_function_args.phpt

@@ -2,7 +2,7 @@
 Check that arguments are freed when calling a deprecated function
 --SKIPIF--
 <?php
-if (!extension_loaded('zend-test')) die('skip zend-test extension not loaded');
+if (!extension_loaded('zend_test')) die('skip zend_test extension not loaded');
 --FILE--
 <?php
 

Zend/tests/const_deprecation.phpt

@@ -2,7 +2,7 @@
 Internal constant deprecation
 --SKIPIF--
 <?php
-if (!extension_loaded('zend-test')) die('skip requires zend-test');
+if (!extension_loaded('zend_test')) die('skip requires zend_test');
 ?>
 --FILE--
 <?php

Zend/tests/inherit_internal_static.phpt

@@ -1,7 +1,7 @@
 --TEST--
 Inherit internal static property into userland class
 --SKIPIF--
-<?php if (!extension_loaded('zend-test')) die('skip requires zend-test'); ?>
+<?php if (!extension_loaded('zend_test')) die('skip requires zend_test'); ?>
 --FILE--
 <?php
 

Zend/tests/iterable_or_null.phpt

@@ -2,7 +2,7 @@
 Test Z_PARAM_ITERABLE() and Z_PARAM_ITERABLE_OR_NULL
 --SKIPIF--
 <?php
-if (!extension_loaded('zend-test')) die('skip zend-test extension not loaded');
+if (!extension_loaded('zend_test')) die('skip zend_test extension not loaded');
 ?>
 --FILE--
 <?php

Zend/tests/overloaded_func_001.phpt

@@ -2,7 +2,7 @@
 Overloaded function 001
 --SKIPIF--
 <?php
-if (!extension_loaded('zend-test')) die('skip zend-test extension not loaded');
+if (!extension_loaded('zend_test')) die('skip zend_test extension not loaded');
 ?>
 --FILE--
 <?php

Zend/tests/overloaded_func_002.phpt

@@ -2,7 +2,7 @@
 Overloaded function 002
 --SKIPIF--
 <?php
-if (!extension_loaded('zend-test')) die('skip zend-test extension not loaded');
+if (!extension_loaded('zend_test')) die('skip zend_test extension not loaded');
 ?>
 --FILE--
 <?php

Zend/tests/return_types/internal_functions001.phpt

@@ -2,7 +2,7 @@
 Return type for internal functions
 --SKIPIF--
 <?php
-if (!extension_loaded('zend-test')) die('skip zend-test extension not loaded');
+if (!extension_loaded('zend_test')) die('skip zend_test extension not loaded');
 // Internal function return types are only checked in debug builds
 if (!PHP_DEBUG) die('skip requires debug build');
 ?>