Throw an exception when no candidates for an uninterpreted name are f…

…ound (#1673)

* Throw an exception when no uninterpreted names are found

* Add an integration test

intTests/test_resolve_unint_missing/test.saw

@@ -0,0 +1 @@
+fails (prove_print (w4_unint_yices ["foo"]) {{ True }});

intTests/test_resolve_unint_missing/test.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+set -e
+
+$SAW test.saw

src/SAWScript/Builtins.hs

@@ -515,12 +515,14 @@ resolveName sc nm =
                 do resolvedName <- io $ scResolveNameByURI sc uri
                    case resolvedName of
                      Just vi -> pure $ vi:scnms
-                     Nothing -> pure scnms
-              _ -> pure scnms
-       Nothing -> pure scnms
+                     Nothing -> fallback scnms
+              _ -> fallback scnms
+       Nothing -> fallback scnms
 
  where
  tnm = Text.pack nm
+ fallback [] = fail $ "Could not resolve name: " <> show nm
+ fallback scnms = pure scnms
 
 
 normalize_term :: TypedTerm -> TopLevel TypedTerm