[k2] log built-in calls in tests (#1550)

Author: Shamzik

compiler/code-gen/vertex-compiler.cpp

@@ -917,7 +917,7 @@ void compile_func_call(VertexAdaptor<op_func_call> root, CodeGenerator &W, func_
     }
 
     if (is_function_call_should_be_tracked(func)) {
-      W << "SAVE_BUILTIN_CALL_STATS(\"" << func->name << "\", (";
+      W << "DUMP_BUILTIN_CALL_STATS(\"" << func->name << "\", (";
     }
 
     if (mode == func_call_mode::fork_call) {

runtime-light/stdlib/diagnostics/functions-call-stats.h

@@ -0,0 +1,9 @@
+// Compiler for PHP (aka KPHP)
+// Copyright (c) 2026 LLC «V Kontakte»
+// Distributed under the GPL v3 License, see LICENSE.notice.txt
+
+#pragma once
+
+#include "runtime-light/stdlib/diagnostics/logs.h"
+
+#define DUMP_BUILTIN_CALL_STATS(builtin_name, builtin_call) (kphp::log::debug("built-in called: " builtin_name), builtin_call)

runtime/runtime-builtin-stats.h

@@ -49,6 +49,6 @@ inline void save_virtual_builtin_call_stats(const kphp::stl::string<kphp::memory
 }
 } // namespace runtime_builtins_stats
 
-#define SAVE_BUILTIN_CALL_STATS(builtin_name, builtin_call)                                                                                                    \
+#define DUMP_BUILTIN_CALL_STATS(builtin_name, builtin_call)                                                                                                    \
   (!runtime_builtins_stats::request_stats.has_value() ? 0 : (*runtime_builtins_stats::request_stats).builtin_stats[std::string_view(builtin_name)]++,          \
    builtin_call)

tests/kphp_tester.py

@@ -75,6 +75,7 @@ def set_up_env_for_k2(self):
         self.env_vars["KPHP_ENABLE_GLOBAL_VARS_MEMORY_STATS"] = "0"
         self.env_vars["KPHP_PROFILER"] = "0"
         self.env_vars["KPHP_FORCE_LINK_RUNTIME"] = "1"
+        self.env_vars["KPHP_TRACKED_BUILTINS_LIST"] = KphpRunOnce.K2_KPHP_TRACKED_BUILTINS_LIST
 
 
 def make_test_file(file_path, test_tmp_dir, test_tags):