Merge branch 'PHP-7.4'

Author: nikic

ext/opcache/tests/bug77191.phpt

@@ -0,0 +1,17 @@
+--TEST--
+Bug #77191: Assertion failure in dce_live_ranges() when silencing is used
+--FILE--
+<?php
+function test($x) {
+	switch (@$x['y']) {
+		case 1: return 'a';
+		case 2: return 'b';
+		case 3: return 'c';
+		case 4: return 'd';
+	}
+	return 'e';
+}
+var_dump(test([]));
+?>
+--EXPECT--
+string(1) "e"