Fir2Ir conversion consists of multiple steps with complex logic (like
conversion of each module, actualization, plugins application, constant
evaluation), and to ensure that they all are executed correctly it's
convenient to have the single entry point for all this machinery
`fir2IrComponents`, `irActualizerResult` and `dependentIrModuleFragments`
were used in `IrActualizerAndPluginsFacade`, which was removed in the
previous commit
IR actualization and IR plugins will be moved into base Fir2Ir facades
in the following commits, so this facade is not needed anymore
It was easier and cleanlier to remove this facade first and only after
that modify base facades
Implement an infrastructure for checking IR before JS klib serialization.
Implement the EXPORTING_JS_NAME_CLASH and EXPORTING_JS_NAME_CLASH_ES checks.
^KT-61710 Fixed
Move the checkFullDiagnosticRender() function from
the JvmBackendDiagnosticsHandler class so it can be reused
in the JsBackendDiagnosticsHandler class.
We have `BackendKinds.IrBackend` for IR emitted by the frontend.
We need a different backend kind for IR deserialized from klibs.
We cannot use `BackendKinds.IrBackend` for that purpose, because we
cannot have two different `IrBackendInput` subclasses with the same
kind.
We need a different `IrBackendInput` subclass for deserialized IR
because the `IrBackendInput` for frontend-emitted IR contains some
properties like `sourceFiles` which don't make sense for
deserialized IR.
Since we now have two backend kinds for IR artifacts, we need to make
certain functions and classes in the test infrastructure generic
over backend kinds.
Note: the JsIrDeserializedFromKlibBackendInput class is not used
anywhere yet. We will use it in the coming commits.
Previously application of plugins was part of fir2ir conversion and
ir actualization was the responsibility of each specific IR backend
facade. Now (after moving IR extensions after IR actualization) those
actions are extracted into separate facade for two purposes:
1. Avoid code duplication in backend facades
2. Step with this facade goes exactly after fir2ir conversion before
irHandlersStep, which allows IR handlers to observe IR which was
actualized and modified by extensions, which is quite useful
^KT-56173