* TypeMap: prepare refactoring into a modular design
* TypeMap: refactor C++ backend into common methods
* TypeMap: refactor CLI backend into common methods
* CLI.Gen.cs: fix omitted typemap from previous commit
* Common.Gen.cs: fixed silly modification while testing
* GeneratorKind: add FindGeneratorKindByID method
* TypeMapDatabase: heavy refactor: group typemaps by GeneratorKind
* TypeMap: refactor CSharp backend into common methods + migration
* TypeMap: cleanup patches from previous commits
* TypeMapDatabase: fix passing GeneratorKind to FindTypeMap calls
* Stdlib.CSharp.cs: move std::map typemap from Stdlib.CLI.cs
* TypeMapDatabase: improve parameter name
- Operators in generic classes do not attempt to generate as extension methods anymore
- Empty `...Extensions` classes are no longer generated
- `string` as a template argument is correctly cast
- `MarshalCharAsManagedChar` option also generates correct casts
- Suppress warning regarding returning struct field by ref
- Eliminate some tabs that snuck into the test C++ header
Dereference pointers when generating getters for pointer variables.
Otherwise, the managed instance would point to the pointer itself
rather than the object at the native instance's address.
- Expression generation for `ConstructorReference` now also recursively
calls `VisitExpression` for the argument if only one argument is
detected. This allows correct overload generation for functions taking
a variable as the default parameter value.
- Default parameters of pointer-to-enumeration types are now correctly
generated similar to primitive types.