Revert some unnecessary test changes

Zend/tests/generators/yield_precedence.phpt

@@ -5,7 +5,7 @@ Precedence of yield and arrow operators
 
 function gen() {
     yield "a" . "b";
-    yield "a" or die();
+    yield "a" or die;
     yield "k" => "a" . "b";
     yield "k" => "a" or die();
     var_dump([yield "k" => "a" . "b"]);

Zend/tests/gh9916-006.phpt

@@ -14,7 +14,7 @@ $gen = (function() {
     yield from (function () {
         $x = new stdClass;
         print "Before exit\n";
-        exit();
+        exit;
         print "Not executed\n";
         yield;
     })();

Zend/tests/jump12.phpt

@@ -7,7 +7,7 @@ goto c;
 declare (ticks=1) {
     b:
         print "ok!\n";
-        exit();
+        exit;
 }
 c:
     print "ok!\n";

Zend/tests/throw/leaks.phpt

@@ -24,7 +24,7 @@ try {
 var_dump(error_reporting());
 
 // Exit also unwinds and thus has the same basic problem.
-new stdClass(exit());
+new stdClass(exit);
 
 ?>
 --EXPECT--