fixes #676, #674, quite likely also #675, but also uncovers an issue with correctly resolving references to known members in dictionary/field calls (using the ! syntax)

Author: retailcoder

Rubberduck.Parsing/Symbols/IdentifierReferenceResolver.cs

@@ -321,6 +321,11 @@ private Declaration ResolveInternal(VBAParser.DictionaryCallStmtContext fieldCal
             }
 
             var parentType = ResolveType(parent);
+            if (parentType == null)
+            {
+                return null;
+            }
+
             var members = _declarations.FindMembers(parentType);
             var fieldName = fieldCall.ambiguousIdentifier().GetText();