Sergey,

This patch moves the aforementioned test from the <misc> to the <lang/>
directory, includes it in <index>, and names the subtest.

Part of tarantool/tarantool#9398
---

 test/LuaJIT-tests/lang/index         |  1 +
 test/LuaJIT-tests/lang/parse_esc.lua | 10 ++++++++++
 test/LuaJIT-tests/misc/parse_esc.lua |  7 -------
 3 files changed, 11 insertions(+), 7 deletions(-)
 create mode 100644 test/LuaJIT-tests/lang/parse_esc.lua
 delete mode 100644 test/LuaJIT-tests/misc/parse_esc.lua

diff --git a/test/LuaJIT-tests/lang/index b/test/LuaJIT-tests/lang/index
index 371a5768..0d1175a8 100644
--- a/test/LuaJIT-tests/lang/index
+++ b/test/LuaJIT-tests/lang/index
@@ -18,6 +18,7 @@ concat.lua
 self.lua
 table.lua
 parse_comp.lua
+parse_esc.lua
 upvalue
 tail_recursion.lua
 vararg_jit.lua
diff --git a/test/LuaJIT-tests/lang/parse_esc.lua b/test/LuaJIT-tests/lang/parse_esc.lua
new file mode 100644
index 00000000..c14d347a
--- /dev/null
+++ b/test/LuaJIT-tests/lang/parse_esc.lua
@@ -0,0 +1,10 @@
+do --- Base parsing of escape sequences.
+  assert("\79\126" == "O~")
+  assert("\x4f\x7e" == "O~")
+  assert(loadstring[[return "\xxx"]] == nil)
+  assert(loadstring[[return "\xxx"]] == nil)
+
+  assert(assert(loadstring[[return "abc   \z
+
+     def"]])() == "abc   def")
+end
diff --git a/test/LuaJIT-tests/misc/parse_esc.lua b/test/LuaJIT-tests/misc/parse_esc.lua
deleted file mode 100644
index 4bcce0e8..00000000
--- a/test/LuaJIT-tests/misc/parse_esc.lua
+++ /dev/null
@@ -1,7 +0,0 @@
-assert("\79\126" == "O~")
-assert("\x4f\x7e" == "O~")
-assert(loadstring[[return "\xxx"]] == nil)
-assert(loadstring[[return "\xxx"]] == nil)
-assert(assert(loadstring[[return "abc   \z
-
-   def"]])() == "abc   def")