Fix warnings in Elixir test

Signed-off-by: Jakub Gonet <jakub.gonet@swmansion.com>

Author: jgonet

tests/libs/exavmlib/Tests.ex

@@ -182,7 +182,7 @@ defmodule Tests do
 
   defp test_enum_chunk_while() do
     initial_col = 4
-    lines_list = '-1234567890\nciao\n12345\nabcdefghijkl\n12'
+    lines_list = ~c"-1234567890\nciao\n12345\nabcdefghijkl\n12"
     columns = 5
 
     chunk_fun = fn char, {count, rchars} ->
@@ -198,7 +198,7 @@ defmodule Tests do
       {_count, rchars} -> {:cont, Enum.reverse(rchars), []}
     end
 
-    ['-', '12345', '67890', 'ciao', '12345', 'abcde', 'fghij', 'kl', '12'] =
+    [~c"-", ~c"12345", ~c"67890", ~c"ciao", ~c"12345", ~c"abcde", ~c"fghij", ~c"kl", ~c"12"] =
       Enum.chunk_while(lines_list, {initial_col, []}, chunk_fun, after_fun)
   end
 
@@ -291,10 +291,10 @@ defmodule Tests do
     "[]" = inspect([])
     "[0]" = inspect([0])
     "[9, 10]" = inspect([9, 10])
-    ~s'["test"]' = inspect(["test"])
-    "'hello'" = inspect('hello')
+    ~s(["test"]) = inspect(["test"])
+    "'hello'" = inspect(~c"hello")
     "[127]" = inspect([127])
-    "[104, 101, 108, 108, 248]" = inspect('hellø')
+    "[104, 101, 108, 108, 248]" = inspect(~c"hellø")
 
     ~s([5 | "hello"]) = inspect([5 | "hello"])