Improve file/line information for narrowing warning

Report the file/line of the opline rather than the include location.

This should make issues like #8251 easier to debug.

Author: nikic

Zend/Optimizer/zend_inference.c

@@ -1864,7 +1864,10 @@ static void emit_type_narrowing_warning(const zend_op_array *op_array, zend_ssa
 	int def_op_num = ssa->vars[var].definition;
 	const zend_op *def_opline = def_op_num >= 0 ? &op_array->opcodes[def_op_num] : NULL;
 	const char *def_op_name = def_opline ? zend_get_opcode_name(def_opline->opcode) : "PHI";
-	zend_error(E_WARNING, "Narrowing occurred during type inference of %s. Please file a bug report on bugs.php.net", def_op_name);
+	uint32_t lineno = def_opline ? def_opline->lineno : 0;
+	zend_error_at(
+		E_WARNING, op_array->filename, lineno,
+		"Narrowing occurred during type inference of %s. Please file a bug report on https://github.com/php/php-src/issues", def_op_name);
 }
 
 ZEND_API uint32_t zend_array_element_type(uint32_t t1, zend_uchar op_type, int write, int insert)