Fixed bug #62358 (Segfault when using traits a lot)

Author: laruence

NEWS

@@ -13,7 +13,7 @@ PHP                                                                        NEWS
   . Fixed bug #62744 (dangling pointers made by zend_disable_class). (Laruence)
   . Fixed bug #62716 (munmap() is called with the incorrect length).
     ([email protected])
-  . Fixed bug #62460 (php binaries installed as binary.dSYM). (Reeze Xia)
+  . Fixed bug #62358 (Segfault when using traits a lot). (Laruence)
   . Fixed bug #62328 (implementing __toString and a cast to string fails)
     (Laruence)
   . Fixed bug #51363 (Fatal error raised by var_export() not caught by error 
@@ -28,6 +28,9 @@ PHP                                                                        NEWS
   . Fixed bug #62852 (Unserialize invalid DateTime causes crash).
     ([email protected])
 
+- Installation:
+  . Fixed bug #62460 (php binaries installed as binary.dSYM). (Reeze Xia)
+
 - PDO:
   . Fixed bug #62685 (Wrong return datatype in PDO::inTransaction()). (Laruence)
 

Zend/tests/bug62358.phpt

@@ -0,0 +1,32 @@
+--TEST--
+Bug #62358 (Segfault when using traits a lot)
+--SKIPIF--
+<?php
+if (getenv("USE_ZEND_ALLOC") !== "0") {
+    die("skip Need Zend MM enabled");
+}
+?>
+--FILE--
+<?php 
+
+trait T {
+    public function foo() {
+        echo "from T";
+    }
+}
+
+interface I {
+    public function foo();
+}
+
+abstract class A implements I{
+    use T;
+}
+
+class B extends A {
+   public function foo($var) {
+   } 
+}
+?>
+--EXPECTF--
+Strict Standards: Declaration of B::foo() should be compatible with A::foo() in %sbug62358.php on line %d

Zend/zend_compile.c

@@ -3786,7 +3786,6 @@ static int zend_traits_merge_functions_to_class(zend_function *fn TSRMLS_DC, int
 		}
 
 		fn->common.scope = ce;
-		fn->common.prototype = prototype;
 
 		if (prototype
 			&& (prototype->common.fn_flags & ZEND_ACC_IMPLEMENTED_ABSTRACT
@@ -3801,11 +3800,14 @@ static int zend_traits_merge_functions_to_class(zend_function *fn TSRMLS_DC, int
 		if (prototype) {
 			do_inheritance_check_on_method(fn, prototype TSRMLS_CC);
 		}
+
 		/* one more thing: make sure we properly implement an abstract method */
 		if (existing_fn && existing_fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
 			do_inheritance_check_on_method(fn, existing_fn TSRMLS_CC);
 		}
 
+		fn->common.prototype = prototype;
+
 		/* delete inherited fn if the function to be added is not abstract */
 		if (existing_fn
 			&& existing_fn->common.scope != ce