Merge branch 'PHP-7.4'

* PHP-7.4:
  Fixed bug #78895 (Reflection detects abstract non-static class as abstract static. IS_IMPLICIT_ABSTRACT is not longer used)

Author: dstogov

ext/reflection/php_reflection.c

@@ -4667,7 +4667,7 @@ ZEND_METHOD(reflection_class, getModifiers)
 	reflection_object *intern;
 	zend_class_entry *ce;
 	uint32_t keep_flags = ZEND_ACC_FINAL
-		| ZEND_ACC_EXPLICIT_ABSTRACT_CLASS | ZEND_ACC_IMPLICIT_ABSTRACT_CLASS;
+		| ZEND_ACC_EXPLICIT_ABSTRACT_CLASS;
 
 	if (zend_parse_parameters_none() == FAILURE) {
 		return;
@@ -6699,6 +6699,7 @@ PHP_MINIT_FUNCTION(reflection) /* {{{ */
 	zend_class_implements(reflection_class_ptr, 1, reflector_ptr);
 	zend_declare_property_string(reflection_class_ptr, "name", sizeof("name")-1, "", ZEND_ACC_PUBLIC);
 
+	/* IS_IMPLICIT_ABSTRACT is not longer used */
 	REGISTER_REFLECTION_CLASS_CONST_LONG(class, "IS_IMPLICIT_ABSTRACT", ZEND_ACC_IMPLICIT_ABSTRACT_CLASS);
 	REGISTER_REFLECTION_CLASS_CONST_LONG(class, "IS_EXPLICIT_ABSTRACT", ZEND_ACC_EXPLICIT_ABSTRACT_CLASS);
 	REGISTER_REFLECTION_CLASS_CONST_LONG(class, "IS_FINAL", ZEND_ACC_FINAL);

ext/reflection/tests/bug78895.phpt

@@ -0,0 +1,38 @@
+--TEST--
+Fixed bug #78895 (Reflection detects abstract non-static class as abstract static).
+--FILE--
+<?php
+abstract class Foo {
+	abstract public function f1();
+}
+interface I {
+	public function f2();
+}
+trait T {
+	abstract public function f2();
+}
+class Bar extends Foo implements I {
+	use T;	
+	function f1() {}
+	function f2() {}
+}
+$ref = new ReflectionClass(Foo::class);
+var_dump(Reflection::getModifierNames($ref->getModifiers()));
+$ref = new ReflectionClass(I::class);
+var_dump(Reflection::getModifierNames($ref->getModifiers()));
+$ref = new ReflectionClass(T::class);
+var_dump(Reflection::getModifierNames($ref->getModifiers()));
+$ref = new ReflectionClass(Bar::class);
+var_dump(Reflection::getModifierNames($ref->getModifiers()));
+?>
+--EXPECT--
+array(1) {
+  [0]=>
+  string(8) "abstract"
+}
+array(0) {
+}
+array(0) {
+}
+array(0) {
+}