Test failures for 5.4

A pretty interface to see test failures and their diffs can be found at http://qa.php.net/reports/

Testing register_shutdown_function() with timeout. (Bug: #21513) [tests/func/005a.phpt]
Timeout again inside register_shutdown_function [tests/lang/045.phpt]
Bug #28220 (mb_strwidth() returns wrong width values for some Hangul characters) [ext/mbstring/tests/bug28220.phpt]
Bug #49536 (mb_detect_encoding() returns incorrect results when strict_mode is turned on) [ext/mbstring/tests/bug49536.phpt]
Unicode standard conformance test (ill-formed UTF sequences.) [ext/mbstring/tests/illformed_utf_sequences.phpt]
Test mb_internal_encoding() function : usage variations - Test different encodings [ext/mbstring/tests/mb_internal_encoding_variation2.phpt]
Bug #53649 (mysql_query with "load data" unable to save result set) [ext/mysql/tests/bug53649.phpt]
Bug #5547 (mysql_pconnect leaks file descriptors on reconnect) [ext/mysql/tests/bug55473.phpt]
Bug #51647 (Certificate file without private key (pk in another file) doesn't work) [ext/mysqli/tests/bug51647.phpt]
Bug #53503 (mysqli::query returns false after successful LOAD DATA query) [ext/mysqli/tests/bug53503.phpt]
Bug #55283 (SSL options set by mysqli_ssl_set ignored for MySQLi persistent connections) [ext/mysqli/tests/bug55283.phpt]
new mysqli() [ext/mysqli/tests/mysqli_connect_oo_warnings.phpt]
mysqli_debug() - append to trace file [ext/mysqli/tests/mysqli_debug_append.phpt]
mysqli_debug() - invalid debug control strings [ext/mysqli/tests/mysqli_debug_control_string.phpt]
mysqli_debug() - all control string options supported by both mysqlnd and libmysql except oOaA [ext/mysqli/tests/mysqli_debug_mysqlnd_control_string.phpt]
EXPLAIN - metadata [ext/mysqli/tests/mysqli_explain_metadata.phpt]
mysqli_kill() [ext/mysqli/tests/mysqli_kill.phpt]
API vs. SQL LAST_INSERT_ID() [ext/mysqli/tests/mysqli_last_insert_id.phpt]
mysqli_stmt_num_rows() [ext/mysqli/tests/mysqli_stmt_num_rows.phpt]
MySQL PDO->__construct(), options [ext/pdo_mysql/tests/pdo_mysql___construct_options.phpt]
MySQL PDO->__construct(), libmysql only options [ext/pdo_mysql/tests/pdo_mysql___construct_options_libmysql.phpt]
MySQL PDO class interface [ext/pdo_mysql/tests/pdo_mysql_interface.phpt]
Sort with SORT_LOCALE_STRING [ext/standard/tests/array/locale_sort.phpt]