Do not compact runtime cache for calls made in a namespace

Author: Girgias

Zend/Optimizer/compact_literals.c

@@ -600,7 +600,6 @@ void zend_optimizer_compact_literals(zend_op_array *op_array, zend_optimizer_ctx
 					break;
 				case ZEND_INIT_FCALL:
 				case ZEND_INIT_FCALL_BY_NAME:
-				case ZEND_INIT_NS_FCALL_BY_NAME:
 					// op2 func
 					if (func_slot[opline->op2.constant] >= 0) {
 						opline->result.num = func_slot[opline->op2.constant];
@@ -610,6 +609,13 @@ void zend_optimizer_compact_literals(zend_op_array *op_array, zend_optimizer_ctx
 						func_slot[opline->op2.constant] = opline->result.num;
 					}
 					break;
+				/* Do not compact runtime function cache for non qualified namespace calls */
+				case ZEND_INIT_NS_FCALL_BY_NAME:
+					// op2 func
+					opline->result.num = cache_size;
+					cache_size += sizeof(void *);
+					func_slot[opline->op2.constant] = opline->result.num;
+					break;
 				case ZEND_INIT_METHOD_CALL:
 					if (opline->op2_type == IS_CONST) {
 						// op2 method

Zend/tests/autoloading/function/local_function_defined_after_pinned_to_global.phpt

@@ -1,7 +1,5 @@
 --TEST--
 Local function must be able to be defined after it got pinned to the global one
---XFAIL--
-Currently fails under opcache as strlen() gets bound to the global function
 --FILE--
 <?php