PHP warnings during static code analysis using Phan: Expected an object instance when accessing an instance property

Problem/Motivation

PHP warnings during static code analysis using phan with messages:
"Expected an object instance when accessing an instance property, but saw an expression $node with type bool" in i18n_node/i18n_node.module
"Expected an object instance when accessing an instance property, but saw an expression $format with type false" in
i18n_string/i18n_string.module
"Expected an object instance when accessing an instance property, but saw an expression $translation_term with type false" in
i18n_taxonomy/i18n_taxonomy.admin.inc