Emoji: Fix some failing unit tests in PHP 5.2 and 5.3.

- Older versions of PHP don't know how to `html_entity_decode()` emoji.
- The fall back regex was a little too broad, catching characters that aren't emoji.

See #35293.


Built from https://develop.svn.wordpress.org/trunk@41045


git-svn-id: http://core.svn.wordpress.org/trunk@40895 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/formatting.php

@@ -5290,9 +5290,7 @@ function wp_emoji_regex( $type = 'codepoints' ) {
 	// If we're using a PCRE version that doesn't support Unicode, return a loose match regex.
 	if ( 'codepoints' === $type && ( ! defined( 'PCRE_VERSION' ) || version_compare( PCRE_VERSION, '8.32', '<=' ) ) ) {
 		return '/(
-		     \xE2\x98[\x80-\xFF]            # Symbols
-		   | \xE2\x99[\x00-\xFF]
-		   | [\xE3-\xED][\x00-\xFF]{2}
+		     \xE2\x99[\x80-\x82]            # Male and female symbols
 		   | [\x23\x30-\x39]\xE2\x83\xA3    # Digits
 		   | \xF0\x9F[\x85-\x88][\xA6-\xBF] # Enclosed characters
 		   | \xF0\x9F[\x8C-\x97][\x80-\xBF] # Misc

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-alpha-41043';
+$wp_version = '4.9-alpha-41045';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.