GC fiber unfinished executions

Zend/tests/fibers/gh9735-001.phpt

@@ -0,0 +1,37 @@
+--TEST--
+Bug GH-9735 001 (Fiber stack variables do not participate in cycle collector)
+--FILE--
+<?php
+
+class C {
+    public function __destruct() {
+        echo __METHOD__, "\n";
+    }
+}
+
+$fiber = new Fiber(function () {
+    $c = new C();
+
+    $fiber = Fiber::getCurrent();
+
+    Fiber::suspend();
+});
+
+print "1\n";
+
+$fiber->start();
+gc_collect_cycles();
+
+print "2\n";
+
+$fiber = null;
+gc_collect_cycles();
+
+print "3\n";
+
+?>
+--EXPECT--
+1
+2
+C::__destruct
+3

Zend/tests/fibers/gh9735-002.phpt

@@ -0,0 +1,41 @@
+--TEST--
+Bug GH-9735 002 (Fiber stack variables do not participate in cycle collector)
+--FILE--
+<?php
+
+class C {
+    public function __destruct() {
+        echo __METHOD__, "\n";
+    }
+}
+
+function f() {
+    Fiber::suspend();
+}
+
+$fiber = new Fiber(function () {
+    $c = new C();
+
+    $fiber = Fiber::getCurrent();
+
+    f();
+});
+
+print "1\n";
+
+$fiber->start();
+gc_collect_cycles();
+
+print "2\n";
+
+$fiber = null;
+gc_collect_cycles();
+
+print "3\n";
+
+?>
+--EXPECT--
+1
+2
+C::__destruct
+3

Zend/tests/fibers/gh9735-003.phpt

@@ -0,0 +1,40 @@
+--TEST--
+Bug GH-9735 003 (Fiber stack variables do not participate in cycle collector)
+--FILE--
+<?php
+
+class C {
+    public function __destruct() {
+        echo __METHOD__, "\n";
+    }
+}
+
+function f() {
+    $fiber = Fiber::getCurrent();
+    Fiber::suspend();
+}
+
+$fiber = new Fiber(function () {
+    $c = new C();
+
+    f();
+});
+
+print "1\n";
+
+$fiber->start();
+gc_collect_cycles();
+
+print "2\n";
+
+$fiber = null;
+gc_collect_cycles();
+
+print "3\n";
+
+?>
+--EXPECT--
+1
+2
+C::__destruct
+3

Zend/tests/fibers/gh9735-004.phpt

@@ -0,0 +1,40 @@
+--TEST--
+Bug GH-9735 004 (Fiber stack variables do not participate in cycle collector)
+--FILE--
+<?php
+
+class C {
+    public function __destruct() {
+        echo __METHOD__, "\n";
+    }
+}
+
+function f() {
+    $fiber = Fiber::getCurrent();
+    Fiber::suspend();
+}
+
+$fiber = new Fiber(function () {
+    $c = new C();
+
+    preg_replace_callback('#.#', f(...), '.');
+});
+
+print "1\n";
+
+$fiber->start();
+gc_collect_cycles();
+
+print "2\n";
+
+$fiber = null;
+gc_collect_cycles();
+
+print "3\n";
+
+?>
+--EXPECT--
+1
+2
+C::__destruct
+3

Zend/tests/fibers/gh9735-005.phpt

@@ -0,0 +1,44 @@
+--TEST--
+Bug GH-9735 005 (Fiber stack variables do not participate in cycle collector)
+--FILE--
+<?php
+
+class C {
+    public function __destruct() {
+        echo __METHOD__, "\n";
+    }
+}
+
+function f() {
+    Fiber::suspend();
+}
+
+$fiber = new Fiber(function () {
+    $c = new C();
+
+    $fiber = Fiber::getCurrent();
+
+    // Force symbol table
+    get_defined_vars();
+
+    f();
+});
+
+print "1\n";
+
+$fiber->start();
+gc_collect_cycles();
+
+print "2\n";
+
+$fiber = null;
+gc_collect_cycles();
+
+print "3\n";
+
+?>
+--EXPECTF--
+1
+2
+C::__destruct
+3

Zend/tests/fibers/gh9735-006.phpt

@@ -0,0 +1,47 @@
+--TEST--
+Bug GH-9735 006 (Fiber stack variables do not participate in cycle collector)
+--FILE--
+<?php
+
+class C {
+    public function __destruct() {
+        echo __METHOD__, "\n";
+    }
+}
+
+function f() {
+    // Force symbol table
+    get_defined_vars();
+
+    Fiber::suspend();
+}
+
+$fiber = new Fiber(function () {
+    $c = new C();
+
+    $fiber = Fiber::getCurrent();
+
+    // Force symbol table
+    get_defined_vars();
+
+    f();
+});
+
+print "1\n";
+
+$fiber->start();
+gc_collect_cycles();
+
+print "2\n";
+
+$fiber = null;
+gc_collect_cycles();
+
+print "3\n";
+
+?>
+--EXPECTF--
+1
+2
+C::__destruct
+3

Zend/tests/fibers/gh9735-007.phpt

@@ -0,0 +1,47 @@
+--TEST--
+Bug GH-9735 007 (Fiber stack variables do not participate in cycle collector)
+--FILE--
+<?php
+
+class C {
+    public function __destruct() {
+        echo __METHOD__, "\n";
+    }
+}
+
+function f() {
+    $fiber = Fiber::getCurrent();
+
+    // Force symbol table
+    get_defined_vars();
+
+    Fiber::suspend();
+}
+
+$fiber = new Fiber(function () {
+    $c = new C();
+
+    // Force symbol table
+    get_defined_vars();
+
+    f();
+});
+
+print "1\n";
+
+$fiber->start();
+gc_collect_cycles();
+
+print "2\n";
+
+$fiber = null;
+gc_collect_cycles();
+
+print "3\n";
+
+?>
+--EXPECTF--
+1
+2
+C::__destruct
+3

Zend/tests/fibers/gh9735-008.phpt

@@ -0,0 +1,42 @@
+--TEST--
+Bug GH-9735 008 (Fiber stack variables do not participate in cycle collector)
+--FILE--
+<?php
+
+class C {
+    public function __destruct() {
+        echo __METHOD__, "\n";
+    }
+}
+
+function f($a, $b) {
+}
+
+function g() {
+    Fiber::suspend();
+}
+
+$fiber = new Fiber(function () {
+    $c = new C();
+
+    f(Fiber::getCurrent(), g());
+});
+
+print "1\n";
+
+$fiber->start();
+gc_collect_cycles();
+
+print "2\n";
+
+$fiber = null;
+gc_collect_cycles();
+
+print "3\n";
+
+?>
+--EXPECTF--
+1
+2
+C::__destruct
+3

Zend/tests/fibers/gh9735-009.phpt

@@ -0,0 +1,42 @@
+--TEST--
+Bug GH-9735 009 (Fiber stack variables do not participate in cycle collector)
+--FILE--
+<?php
+
+class C {
+    public function __destruct() {
+        echo __METHOD__, "\n";
+    }
+}
+
+function f($a, $b) {
+}
+
+function g() {
+    g(Fiber::suspend());
+}
+
+$fiber = new Fiber(function () {
+    $c = new C();
+
+    f(Fiber::getCurrent(), g());
+});
+
+print "1\n";
+
+$fiber->start();
+gc_collect_cycles();
+
+print "2\n";
+
+$fiber = null;
+gc_collect_cycles();
+
+print "3\n";
+
+?>
+--EXPECTF--
+1
+2
+C::__destruct
+3