fix regression due to 6dd22d1, error when inspecting arrays

Author: jbyuki

lua/osv/init.lua

@@ -974,7 +974,7 @@ function M.prepare_attach(blocking)
 
         else
           local v = {}
-          v.name = ln
+          v.name = tostring(ln)
           v.variablesReference = 0
           if type(lv) == "table" then
             vars_ref[vars_id] = lv
@@ -1007,7 +1007,7 @@ function M.prepare_attach(blocking)
 
         else
           local v = {}
-          v.name = ln
+          v.name = tostring(ln)
           v.variablesReference = 0
           if type(lv) == "table" then
             vars_ref[vars_id] = lv
@@ -1032,7 +1032,7 @@ function M.prepare_attach(blocking)
     elseif type(ref) == "table" then
       for ln, lv in pairs(ref) do
           local v = {}
-          v.name = ln
+          v.name = tostring(ln)
           v.variablesReference = 0
           if type(lv) == "table" then
             vars_ref[vars_id] = lv

src/handlers/variables.lua.t2

@@ -49,7 +49,7 @@ end
 if vim.startswith(ln, "(") then
 
 ;; fill variable struct
-v.name = ln
+v.name = tostring(ln)
 v.variablesReference = 0
 if type(lv) == "table" then
   ; make variable reference for table