FieldDeclarationMacro constructor Null safety

1. macro_builder
2. definition
3. FieldDeclarationMacro
4. FieldDeclarationMacro constructor

FieldDeclarationMacro class

1. Constructors
2. FieldDeclarationMacro
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. noSuchMethod
8. toString
9. visitFieldDeclaration
10. Operators
11. operator ==