devel: fix yield sample for decompile test

git-svn-id: svn://svn.lighttpd.net/xcache/trunk@1336 c26eb9a1-5813-0410-bd6c-c2e55f420ca7

mod_disassembler/sample.cpp.php

@@ -176,13 +176,13 @@ function f1($f)
 {
 	echo __FUNCTION__;
 	echo $f;
-#if PHP_VERSION > 550
+#if PHP_VERSION >= 550
 
 	foreach ($a as $b) {
-		yield($b);
+		yield $b;
 	}
 
-	yield($f);
+	yield f1($b);
 #endif
 }
 #if PHP_VERSION >= 500