Merge mainstream 'master' branch into refactoring

During merge I had to revert:
	Nikita's patch for php_splice() (it probably needs to be applyed again)
	Bob Weinand's patches related to constant expression handling (we need to review them carefully)
	I also reverted all our attempts to support sapi/phpdbg (we didn't test it anyway)

Conflicts:
	Zend/zend.h
	Zend/zend_API.c
	Zend/zend_ast.c
	Zend/zend_compile.c
	Zend/zend_compile.h
	Zend/zend_constants.c
	Zend/zend_exceptions.c
	Zend/zend_execute.c
	Zend/zend_execute.h
	Zend/zend_execute_API.c
	Zend/zend_hash.c
	Zend/zend_highlight.c
	Zend/zend_language_parser.y
	Zend/zend_language_scanner.c
	Zend/zend_language_scanner_defs.h
	Zend/zend_variables.c
	Zend/zend_vm_def.h
	Zend/zend_vm_execute.h
	ext/date/php_date.c
	ext/dom/documenttype.c
	ext/hash/hash.c
	ext/iconv/iconv.c
	ext/mbstring/tests/zend_multibyte-10.phpt
	ext/mbstring/tests/zend_multibyte-11.phpt
	ext/mbstring/tests/zend_multibyte-12.phpt
	ext/mysql/php_mysql.c
	ext/mysqli/mysqli.c
	ext/mysqlnd/mysqlnd_reverse_api.c
	ext/mysqlnd/php_mysqlnd.c
	ext/opcache/ZendAccelerator.c
	ext/opcache/zend_accelerator_util_funcs.c
	ext/opcache/zend_persist.c
	ext/opcache/zend_persist_calc.c
	ext/pcre/php_pcre.c
	ext/pdo/pdo_dbh.c
	ext/pdo/pdo_stmt.c
	ext/pdo_pgsql/pgsql_driver.c
	ext/pgsql/pgsql.c
	ext/reflection/php_reflection.c
	ext/session/session.c
	ext/spl/spl_array.c
	ext/spl/spl_observer.c
	ext/standard/array.c
	ext/standard/basic_functions.c
	ext/standard/html.c
	ext/standard/mail.c
	ext/standard/php_array.h
	ext/standard/proc_open.c
	ext/standard/streamsfuncs.c
	ext/standard/user_filters.c
	ext/standard/var_unserializer.c
	ext/standard/var_unserializer.re
	main/php_variables.c
	sapi/phpdbg/phpdbg.c
	sapi/phpdbg/phpdbg_bp.c
	sapi/phpdbg/phpdbg_frame.c
	sapi/phpdbg/phpdbg_help.c
	sapi/phpdbg/phpdbg_list.c
	sapi/phpdbg/phpdbg_print.c
	sapi/phpdbg/phpdbg_prompt.c

1 files changed, 109 insertions, 0 deletions

diff --git a/ext/openssl/tests/ServerClientTestCase.inc b/ext/openssl/tests/ServerClientTestCase.inc
new file mode 100644
index 0000000000..03e0c2de87
--- /dev/null
+++ b/ext/openssl/tests/ServerClientTestCase.inc
@@ -0,0 +1,109 @@
+<?php
+
+const WORKER_ARGV_VALUE = 'RUN_WORKER';
+
+function phpt_notify()
+{
+    ServerClientTestCase::getInstance()->notify();
+}
+
+function phpt_wait()
+{
+    ServerClientTestCase::getInstance()->wait();
+}
+
+/**
+ * This is a singleton to let the wait/notify functions work
+ * I know it's horrible, but it's a means to an end
+ */
+class ServerClientTestCase
+{
+    private $isWorker = false;
+
+    private $workerHandle;
+
+    private $workerStdIn;
+
+    private $workerStdOut;
+
+    private static $instance;
+
+    public static function getInstance($isWorker = false)
+    {
+        if (!isset(self::$instance)) {
+            self::$instance = new self($isWorker);
+        }
+
+        return self::$instance;
+    }
+
+    public function __construct($isWorker = false)
+    {
+        if (!isset(self::$instance)) {
+            self::$instance = $this;
+        }
+
+        $this->isWorker = $isWorker;
+    }
+
+    private function spawnWorkerProcess($code)
+    {
+        $cmd = sprintf('%s "%s" %s', PHP_BINARY, __FILE__, WORKER_ARGV_VALUE);
+
+        $this->workerHandle = proc_open($cmd, [['pipe', 'r'], ['pipe', 'w'], STDERR], $pipes);
+        $this->workerStdIn = $pipes[0];
+        $this->workerStdOut = $pipes[1];
+
+        fwrite($this->workerStdIn, $code . "\n---\n");
+    }
+
+    private function cleanupWorkerProcess()
+    {
+        fclose($this->workerStdIn);
+        fclose($this->workerStdOut);
+        proc_close($this->workerHandle);
+    }
+
+    private function stripPhpTagsFromCode($code)
+    {
+        return preg_replace('/^\s*<\?(?:php)?|\?>\s*$/i', '', $code);
+    }
+
+    public function runWorker()
+    {
+        $code = '';
+
+        while (1) {
+            $line = fgets(STDIN);
+
+            if (trim($line) === "---") {
+                break;
+            }
+
+            $code .= $line;
+        }
+
+        eval($code);
+    }
+
+    public function run($proc1Code, $proc2Code)
+    {
+        $this->spawnWorkerProcess($this->stripPhpTagsFromCode($proc2Code));
+        eval($this->stripPhpTagsFromCode($proc1Code));
+        $this->cleanupWorkerProcess();
+    }
+    
+    public function wait()
+    {
+        fgets($this->isWorker ? STDIN : $this->workerStdOut);
+    }
+
+    public function notify()
+    {
+        fwrite($this->isWorker ? STDOUT : $this->workerStdIn, "\n");
+    }
+}
+
+if (isset($argv[1]) && $argv[1] === WORKER_ARGV_VALUE) {
+    ServerClientTestCase::getInstance(true)->runWorker();
+}