Split tests/ibase_param_info_001.phpt into 3 tests

This patch splits `tests/ibase_param_info_001.phpt` into 3 tests so that
we can check for different error messages depending on which PHP version
we are running.

Author: Jon4t4n

tests/ibase_param_info_001.phpt

@@ -16,11 +16,6 @@ print "---\n";
 
 var_dump(ibase_param_info($rs, 100));
 
-print "---\n";
-
-var_dump(ibase_param_info(100));
-
-
 ?>
 --EXPECTF--
 array(10) {
@@ -47,7 +42,3 @@ array(10) {
 }
 ---
 bool(false)
----
-
-Warning: ibase_param_info() expects exactly 2 parameters, 1 given in %s on line %d
-NULL

tests/ibase_param_info_002.phpt

@@ -0,0 +1,16 @@
+--TEST--
+ibase_param_info(): Error if called with a single argument
+--SKIPIF--
+<?php
+include("skipif.inc");
+include("skipif-php8-or-newer.inc");
+?>
+--FILE--
+<?php
+
+var_dump(ibase_param_info(100));
+
+?>
+--EXPECTF--
+Warning: ibase_param_info() expects exactly 2 parameters, 1 given in %s on line %d
+NULL

tests/ibase_param_info_003.phpt

@@ -0,0 +1,15 @@
+--TEST--
+ibase_param_info(): Error if called with a single argument
+--SKIPIF--
+<?php
+include("skipif.inc");
+include("skipif-php7-or-older.inc");
+?>
+--FILE--
+<?php
+
+var_dump(ibase_param_info(100));
+
+?>
+--EXPECTF--
+Fatal error: Uncaught ArgumentCountError: ibase_param_info() expects exactly 2 arguments, 1 given in %a

tests/skipif-php7-or-older.inc

@@ -0,0 +1,5 @@
+<?php
+if (PHP_MAJOR_VERSION < 8) {
+    die('skip: This test verifies behavior that can only be observed in PHP versions >= 8.0');
+}
+?>

tests/skipif-php8-or-newer.inc

@@ -0,0 +1,5 @@
+<?php
+if (PHP_MAJOR_VERSION >= 8) {
+    die('skip: This test verifies behavior that can only be observed in PHP versions < 8.0');
+}
+?>