pass on IDEInstInteraction analysis and a few fixes

Author: pdschubert

.clang-tidy

@@ -55,7 +55,7 @@ CheckOptions:
   - key:             readability-identifier-naming.ParameterIgnoredRegexp
     value:           (d|d1|d2|d3|d4|d5|eP|f|n)
   - key:             readability-identifier-naming.FunctionIgnoredRegexp
-    value:           (try_emplace|from_json|to_json)
+    value:           (try_emplace|from_json|to_json|equal_to)
   - key:             cppcoreguidelines-special-member-functions.AllowSoleDefaultDtor
     value:           1
   - key:             cppcoreguidelines-special-member-functions.AllowMissingMoveFunctions