Fix MultiBlocProvider and MultiRepositoryProvider type inference

[felangel]

Status

READY

Breaking Changes

NO

Description

As a developer, I shouldn't need to provider the Bloc/Repository type explicitly when using MultiBlocProvider, MultiBlocListener, or MultiRepositoryProvider.

MultiBlocProvider(
  providers: [
    BlocProvider<BlocA>(
      create: (_) => BlocA(),
    ),
    BlocProvider<BlocB>(
      create: (_) => BlocB(),
    ),
    child: MyChild(),
);

Instead, I should be able to omit the type and have it be correctly inferred:

MultiBlocProvider(
  providers: [
    BlocProvider(
      create: (_) => BlocA(),
    ),
    BlocProvider(
      create: (_) => BlocB(),
    ),
    child: MyChild(),
);

Todos

• Tests
• Documentation
• Examples

Impact to Remaining Code Base

• Enhancement to be included in flutter_bloc 3.2.0

[codecov]

Codecov Report

Merging #773 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master   #773   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          16     16           
  Lines         238    238           
=====================================
  Hits          238    238

Impacted Files	Coverage Δ
...ages/flutter_bloc/lib/src/repository_provider.dart	100% <ø> (ø)	⬆️
...ages/flutter_bloc/lib/src/multi_bloc_provider.dart	100% <ø> (ø)	⬆️
packages/flutter_bloc/lib/src/bloc_listener.dart	100% <ø> (ø)	⬆️
...lutter_bloc/lib/src/multi_repository_provider.dart	100% <ø> (ø)	⬆️
packages/flutter_bloc/lib/src/bloc_provider.dart	100% <ø> (ø)	⬆️
...ages/flutter_bloc/lib/src/multi_bloc_listener.dart	100% <ø> (ø)	⬆️

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