Change PHP_DEBUG and PHP_ZTS to bool (#3078)

Co-authored-by: haszi <haszika80@gmail.com>

Author: haszi

appendices/reserved.constants.core.xml

@@ -105,7 +105,8 @@
   <varlistentry xml:id="constant.php-zts">
    <term>
     <constant>PHP_ZTS</constant>
-    (<type>int</type>)
+    (<type>bool</type>)
+    &Alias; <constant>ZEND_THREAD_SAFE</constant>
    </term>
    <listitem>
     <simpara>
@@ -116,7 +117,8 @@
   <varlistentry xml:id="constant.php-debug">
    <term>
     <constant>PHP_DEBUG</constant>
-    (<type>int</type>)
+    (<type>bool</type>)
+    &Alias; <constant>ZEND_DEBUG_BUILD</constant>
    </term>
    <listitem>
     <simpara>