test ? in ok (fixes #23) (#47)

Author: arnetheduck

tests/test_results.nim

@@ -592,6 +592,14 @@ block: # Result[T, void] aka `Opt`
     doAssert oOk.value() in oOk
     doAssert oOk.value() + 1 notin oOk
 
+block: # Nested `?`
+  proc inside: Opt[int] =
+    ok(5)
+  proc kput: Opt[int] =
+    ok(? inside())
+
+  doAssert kput() == Opt.some(5)
+
 block: # `cstring` dangling reference protection
   type CSRes = Result[void, cstring]