v0.25.0

0.25.0

• Fix crash if a code reference ambiguously referred to a parameter of
  an optional function parameter (#1835, #1841)
• Allow annotations that return the dynamic type (#1834, #1840)
• Better error messages in the case of a package with no documentable
  libraries (#1832)
• Fix a problem where the reexport tagger could trigger stack overflow
  if a library exported itself (#1832, #1838)
• Performance-related refactorings to return some of the performance lost
  with macro templates in private libraries (#1828, #1829, #1831, #1837)
• Fix several Flutter problems (#1819)
  • Fix assertion failure if macros are defined in packages with no public
    libraries
  • Allow declaring macro templates in private libraries
  • Avoid circular dependency in finding special objects
  • Populate reference cache with child elements of mixins (fixes ~45 links
    inside Flutter)
• Added support for automatic snapshotting of external tools (i.e. for {@tool}
  directives) written in Dart. (#1820)
• Changes to reduce use of internal APIs in analyzer (#1817, #1825)
• Template text now appears where it is defined in addition to where it is
  referenced (#1812)
• Change placeholder string in search box to 'Search API Docs'
• Fix some instances where macros were not being resolved correctly (#1811)
• Macro templates now appear where they are defined in addition to where
  they are referenced (#1810)