FIR entrypoint: deduplicate some code and remove JVM dependency

Deduplicate Fir2IrExtensions creation and move the
convertToIrAndActualizeForJvm function to 'cli', which allows to remove
the dependency of 'fir.entrypoint' on 'backend.jvm'.

Note that behavior slightly changes in IncrementalFirJvmCompilerRunner:
previously the value of linkViaSignatures was always false, now it is
taken from the compiler configuration, which seems more correct.

compiler/fir/entrypoint/build.gradle.kts

@@ -21,7 +21,7 @@ dependencies {
     implementation(project(":compiler:fir:resolve"))
     implementation(project(":compiler:fir:fir-serialization"))
     implementation(project(":compiler:fir:fir2ir:jvm-backend"))
-    implementation(project(":compiler:backend.jvm"))
+    implementation(project(":compiler:ir.backend.common"))
     implementation(project(":compiler:ir.serialization.common"))
     implementation(project(":compiler:ir.serialization.jvm"))
     implementation(project(":compiler:ir.serialization.js"))

compiler/fir/entrypoint/src/org/jetbrains/kotlin/fir/pipeline/convertToIr.kt

@@ -9,20 +9,15 @@ import org.jetbrains.kotlin.backend.common.actualizer.IrActualizedResult
 import org.jetbrains.kotlin.backend.common.actualizer.IrActualizer
 import org.jetbrains.kotlin.backend.common.extensions.IrGenerationExtension
 import org.jetbrains.kotlin.backend.common.extensions.IrPluginContext
-import org.jetbrains.kotlin.backend.jvm.JvmIrTypeSystemContext
 import org.jetbrains.kotlin.backend.jvm.serialization.JvmIdSignatureDescriptor
-import org.jetbrains.kotlin.builtins.DefaultBuiltIns
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
 import org.jetbrains.kotlin.fir.FirSession
 import org.jetbrains.kotlin.fir.backend.*
 import org.jetbrains.kotlin.fir.backend.jvm.Fir2IrJvmSpecialAnnotationSymbolProvider
-import org.jetbrains.kotlin.fir.backend.jvm.FirJvmKotlinMangler
-import org.jetbrains.kotlin.fir.backend.jvm.FirJvmVisibilityConverter
 import org.jetbrains.kotlin.fir.declarations.FirFile
 import org.jetbrains.kotlin.fir.resolve.ScopeSession
 import org.jetbrains.kotlin.ir.IrBuiltIns
 import org.jetbrains.kotlin.ir.backend.jvm.serialization.JvmDescriptorMangler
-import org.jetbrains.kotlin.ir.backend.jvm.serialization.JvmIrMangler
 import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
 import org.jetbrains.kotlin.ir.declarations.impl.IrFactoryImpl
 import org.jetbrains.kotlin.ir.types.IrTypeSystemContext
@@ -66,22 +61,6 @@ data class Fir2IrActualizedResult(
     val irActualizedResult: IrActualizedResult?,
 )
 
-fun FirResult.convertToIrAndActualizeForJvm(
-    fir2IrExtensions: Fir2IrExtensions,
-    fir2IrConfiguration: Fir2IrConfiguration,
-    irGeneratorExtensions: Collection<IrGenerationExtension>,
-): Fir2IrActualizedResult = this.convertToIrAndActualize(
-    fir2IrExtensions,
-    fir2IrConfiguration,
-    irGeneratorExtensions,
-    signatureComposer = signatureComposerForJvmFir2Ir(fir2IrConfiguration.linkViaSignatures),
-    irMangler = JvmIrMangler,
-    firMangler = FirJvmKotlinMangler(),
-    visibilityConverter = FirJvmVisibilityConverter,
-    kotlinBuiltIns = DefaultBuiltIns.Instance,
-    actualizerTypeContextProvider = ::JvmIrTypeSystemContext,
-)
-
 fun signatureComposerForJvmFir2Ir(generateSignatures: Boolean): IdSignatureComposer {
     val mangler = JvmDescriptorMangler(null)
     return if (generateSignatures) {