analyzer property Null safety

1. conduit_runtime
2. runtime
3. BuildContext
4. analyzer property

BuildContext class

1. Constructors
2. BuildContext
3. fromMap
4. Properties
5. analyzer
6. buildApplicationDirectory
7. buildDirectory
8. buildDirectoryUri
9. buildPackagesDirectory
10. buildRuntimeDirectory
11. context
12. executableUri
13. forTests
14. hashCode
15. packageConfig
16. rootLibraryFileUri
17. runtimeType
18. safeMap
19. source
20. sourceApplicationDirectory
21. sourceApplicationPubspec
22. sourceApplicationPubspecMap
23. sourceLibraryFile
24. targetScriptFileUri
25. Methods
26. getAnnotationsFromField
27. getClassDeclarationFromType
28. getDirectory
29. getFile
30. getImportDirectives
31. getPackageFromUri
32. noSuchMethod
33. toString
34. Operators
35. operator ==