2.0 Fix compatibility with PHPUnit 8

Author: Naktibalda

src/Codeception/Util/Shared/Asserts.php

@@ -40,7 +40,7 @@ protected function assertNot($arguments)
      */
     protected function assertFileNotExists(string $filename, string $message = '')
     {
-        TestCase::assertFileDoesNotExist($filename, $message);
+        TestCase::assertFileNotExists($filename, $message);
     }
 
     /**
@@ -80,15 +80,15 @@ protected function assertLessOrEquals($expected, $actual, string $message = '')
      */
     protected function assertNotRegExp(string $pattern, string $string, string $message = '')
     {
-        TestCase::assertDoesNotMatchRegularExpression($pattern, $string, $message);
+        TestCase::assertNotRegExp($pattern, $string, $message);
     }
 
     /**
      * Asserts that a string matches a given regular expression.
      */
     protected function assertRegExp(string $pattern, string $string, string $message = '')
     {
-        TestCase::assertMatchesRegularExpression($pattern, $string, $message);
+        TestCase::assertRegExp($pattern, $string, $message);
     }
 
     /**

src/Codeception/Util/Shared/InheritedAsserts.php

@@ -164,7 +164,7 @@ protected function assertDirectoryIsWritable(string $directory, string $message
      */
     protected function assertDoesNotMatchRegularExpression(string $pattern, string $string, string $message = '')
     {
-        TestCase::assertDoesNotMatchRegularExpression($pattern, $string, $message);
+        TestCase::assertNotRegExp($pattern, $string, $message);
     }
 
     /**
@@ -236,7 +236,7 @@ protected function assertFalse($condition, string $message = '')
      */
     protected function assertFileDoesNotExist(string $filename, string $message = '')
     {
-        TestCase::assertFileDoesNotExist($filename, $message);
+        TestCase::assertFileNotExists($filename, $message);
     }
 
     /**
@@ -734,7 +734,7 @@ protected function assertLessThanOrEqual($expected, $actual, string $message = '
      */
     protected function assertMatchesRegularExpression(string $pattern, string $string, string $message = '')
     {
-        TestCase::assertMatchesRegularExpression($pattern, $string, $message);
+        TestCase::assertRegExp($pattern, $string, $message);
     }
 
     /**