conditions.show.line_end: simply compare strings

this is fast enough due to luas behaviour of interning strings (->
simple check if pointers are equal)

Author: atticus-sullivan

lua/luasnip/extras/conditions/show.lua

@@ -6,7 +6,10 @@ local M = {}
 -----------------------
 local function line_end(line_to_cursor)
 	local line = vim.api.nvim_get_current_line()
-	return #line_to_cursor == #line
+	-- looks pretty inefficient, but as lue interns strings, this is just a
+	-- comparision of pointers (which probably is faster than calculate the
+	-- length and then checking)
+	return line_to_cursor == line
 end
 M.line_end = cond_obj.make_condition(line_end)