assert() no longer evaluates strings as of PHP 8.0.0

As per the PHP changelog, the functionality to use a string for `assert` has been removed in PHP 8.0: 69888c3ff1/UPGRADING (L350-L354)

Co-authored-by: Christoph M. Becker <cmbecker69@gmx.de>

Closes GH-1471.

appendices/ini.list.xml

@@ -75,7 +75,7 @@
        <entry><link linkend="ini.assert.quiet-eval">assert.quiet_eval</link></entry>
        <entry>"0"</entry>
        <entry>PHP_INI_ALL</entry>
-       <entry></entry>
+       <entry>Removed as of PHP 8.0.0</entry>
       </row>
       <row>
        <entry><link linkend="ini.assert.warning">assert.warning</link></entry>

reference/info/constants.xml

@@ -239,6 +239,7 @@
      <entry>assert.quiet_eval</entry>
      <entry>
       Disable <literal>error_reporting</literal> during assertion expression evaluation.
+      Removed as of PHP 8.0.0.
      </entry>
     </row>
    </tbody>

reference/info/functions/assert.xml

@@ -172,7 +172,7 @@
       <warning>
        <para>
         Using <type>string</type> as the <parameter>assertion</parameter> is
-        <emphasis>DEPRECATED</emphasis> as of PHP 7.2.
+        <emphasis>DEPRECATED</emphasis> as of PHP 7.2.0 and <emphasis>REMOVED</emphasis> as of PHP 8.0.0.
        </para>
       </warning>
      </listitem>
@@ -224,6 +224,16 @@
       </row>
      </thead>
      <tbody>
+      <row>
+       <entry>8.0.0</entry>
+       <entry>
+         <function>assert()</function> will no longer evaluate string arguments, instead they will be
+         treated like any other argument. <code>assert($a == $b)</code> should be used instead of
+         <code>assert('$a == $b')</code>. The <literal>assert.quiet_eval</literal> &php.ini; directive and
+         the <constant>ASSERT_QUIET_EVAL</constant> constant have also been removed, as they would no longer
+         have any effect.
+       </entry>
+      </row>
       <row>
        <entry>8.0.0</entry>
        <entry>