Sergey,

This patch moves the aforementioned test from the <misc> to the <lang/>
directory, includes it in <index>, names the subtests, and slightly
reformates the code style to make it closer to ours.

Part of tarantool/tarantool#9398
---

 test/LuaJIT-tests/lang/hook_active.lua | 102 +++++++++++++++++++++++++
 test/LuaJIT-tests/lang/index           |   1 +
 test/LuaJIT-tests/misc/hook_active.lua |  95 -----------------------
 3 files changed, 103 insertions(+), 95 deletions(-)
 create mode 100644 test/LuaJIT-tests/lang/hook_active.lua
 delete mode 100644 test/LuaJIT-tests/misc/hook_active.lua

diff --git a/test/LuaJIT-tests/lang/hook_active.lua b/test/LuaJIT-tests/lang/hook_active.lua
new file mode 100644
index 00000000..a5f38055
--- /dev/null
+++ b/test/LuaJIT-tests/lang/hook_active.lua
@@ -0,0 +1,102 @@
+local ctest = require("libctest")
+
+local called = 0
+local function clearhook() debug.sethook(nil, "", 0) end
+
+do --- Return from pcall with active hook must prepend true. FF pcall.
+  called = 0
+  debug.sethook(function() called = called + 1; assert(pcall(function() end) == true); clearhook() end, "", 1)
+  do local x = 1 end
+  assert(called == 1)
+end
+
+do --- Hook with special caught error must not unblock hooks. FF pcall.
+  called = 0
+  debug.sethook(function() called = called + 1; pcall(nil); clearhook() end, "", 1)
+  do local x = 1 end
+  assert(called == 1)
+end
+
+do --- Hook with caught error must not unblock hooks. FF pcall.
+  called = 0
+  local function p2() error("") end
+  debug.sethook(function() called = called + 1; pcall(p2); clearhook() end, "", 1)
+  do local x = 1 end
+  assert(called == 1)
+end
+
+do --- Hook with special caught error must not unblock hooks. C pcall.
+  called = 0
+  debug.sethook(function() called = called + 1; ctest.pcall(nil); clearhook() end, "", 1)
+  do local x = 1 end
+  assert(called == 1)
+end
+
+do --- Hook with caught error must not unblock hooks. C pcall.
+  called = 0
+  local function p2() error("") end
+  debug.sethook(function() called = called + 1; ctest.pcall(p2); clearhook() end, "", 1)
+  do local x = 1 end
+  assert(called == 1)
+end
+
+do --- Regular pcall must not block hooks.
+  debug.sethook(function() called = called + 1 end, "", 1)
+  pcall(function() end)
+  called = 0
+  do local x = 1 end
+  assert(called > 0)
+  pcall(function() error("") end)
+  called = 0
+  do local x = 1 end
+  assert(called > 0)
+  ctest.pcall(function() end)
+  called = 0
+  do local x = 1 end
+  assert(called > 0)
+  ctest.pcall(function() error("") end)
+  called = 0
+  do local x = 1 end
+  assert(called > 0)
+  clearhook()
+end
+
+do --- Hook with uncaught error must unblock hooks. FF pcall.
+  called = 0
+  pcall(function()
+    debug.sethook(function()
+      local old = called
+      called = 1
+      if old == 0 then error("") end
+    end, "", 1)
+    do local x = 1 end
+  end)
+  assert(called == 1)
+  called = 2
+  do local x = 1 end
+  assert(called == 1, "hook not unblocked after uncaught error")
+  clearhook()
+  called = 2
+  do local x = 1 end
+  assert(called == 2)
+end
+
+do --- Hook with uncaught error must unblock hooks. C pcall.
+  called = 0
+  ctest.pcall(function()
+    debug.sethook(function()
+      local old = called
+      called = 1
+      if old == 0 then error("") end
+    end, "", 1)
+    do local x = 1 end
+  end)
+  assert(called == 1)
+  called = 2
+  do local x = 1 end
+  assert(called == 1, "hook not unblocked after uncaught error")
+  clearhook()
+  called = 2
+  do local x = 1 end
+  assert(called == 2)
+end
diff --git a/test/LuaJIT-tests/lang/index b/test/LuaJIT-tests/lang/index
index 274425bf..8cecfa08 100644
--- a/test/LuaJIT-tests/lang/index
+++ b/test/LuaJIT-tests/lang/index
@@ -8,6 +8,7 @@ compare_nan.lua
 constant
 dualnum.lua
 for.lua
+hook_active.lua
 length.lua
 lightud.lua
 modulo.lua
diff --git a/test/LuaJIT-tests/misc/hook_active.lua b/test/LuaJIT-tests/misc/hook_active.lua
deleted file mode 100644
index 37dfc379..00000000
--- a/test/LuaJIT-tests/misc/hook_active.lua
+++ /dev/null
@@ -1,95 +0,0 @@
-local ctest = require("ctest")
-
-local called = 0
-local function clearhook() debug.sethook(nil, "", 0) end
-
--- Return from pcall with active hook must prepend true. FF pcall.
-called = 0
-debug.sethook(function() called=called+1; assert(pcall(function() end) == true); clearhook() end, "", 1)
-do local x = 1 end
-assert(called == 1)
-
--- Hook with special caught error must not unblock hooks. FF pcall.
-called = 0
-debug.sethook(function() called=called+1; pcall(nil); clearhook() end, "", 1)
-do local x = 1 end
-assert(called == 1)
-
--- Hook with caught error must not unblock hooks. FF pcall.
-called = 0
-local function p2() error("") end
-debug.sethook(function() called=called+1; pcall(p2); clearhook() end, "", 1)
-do local x = 1 end
-assert(called == 1)
-
--- Hook with special caught error must not unblock hooks. C pcall.
-called = 0
-debug.sethook(function() called=called+1; ctest.pcall(nil); clearhook() end, "", 1)
-do local x = 1 end
-assert(called == 1)
-
--- Hook with caught error must not unblock hooks. C pcall
-called = 0
-local function p2() error("") end
-debug.sethook(function() called=called+1; ctest.pcall(p2); clearhook() end, "", 1)
-do local x = 1 end
-assert(called == 1)
-
--- Regular pcall must not block hooks.
-debug.sethook(function() called=called+1 end, "", 1)
-pcall(function() end)
-called = 0
-do local x = 1 end
-assert(called > 0)
-pcall(function() error("") end)
-called = 0
-do local x = 1 end
-assert(called > 0)
-ctest.pcall(function() end)
-called = 0
-do local x = 1 end
-assert(called > 0)
-ctest.pcall(function() error("") end)
-called = 0
-do local x = 1 end
-assert(called > 0)
-clearhook()
-
--- Hook with uncaught error must unblock hooks. FF pcall
-called = 0
-pcall(function()
-  debug.sethook(function()
-    local old = called
-    called = 1
-    if old == 0 then error("") end
-  end, "", 1)
-  do local x = 1 end
-end)
-assert(called == 1)
-called = 2
-do local x = 1 end
-assert(called == 1, "hook not unblocked after uncaught error")
-clearhook()
-called = 2
-do local x = 1 end
-assert(called == 2)
-
--- Hook with uncaught error must unblock hooks. C pcall
-called = 0
-ctest.pcall(function()
-  debug.sethook(function()
-    local old = called
-    called = 1
-    if old == 0 then error("") end
-  end, "", 1)
-  do local x = 1 end
-end)
-assert(called == 1)
-called = 2
-do local x = 1 end
-assert(called == 1, "hook not unblocked after uncaught error")
-clearhook()
-called = 2
-do local x = 1 end
-assert(called == 2)
-