Include macro surrounded by text incorrectly converted to block in div

In the following Confluence XHTML syntax,

<div>Hello <ac:structured-macro ac:name="include" ac:schema-version="1" ac:macro-id="21107d4e-db11-483a-9378-cc1981c10d27"><ac:parameter ac:name=""><ac:link><ri:page ri:content-title="_SvIncludePlusContent-_environment_long 1" /></ac:link></ac:parameter></ac:structured-macro> world</div>

the include macro is incorrectly migrated block, where it should be converted inline. In CONFLUENCE-307, we had fixed the case where the macro is in a paragraph, we know need to figure out a way to detect that things are inline when surrounded by text (before and/or after).