[Wasm] Support WASI target in K2

- Support WASI mode in CLI and test infrastructure
- Add external declaration checker
- Split Fir diagnostic lists into Base, JS and WASI

#KT-56849 Fixed

compiler/fir/entrypoint/src/org/jetbrains/kotlin/fir/checkers/CheckersContainers.kt

@@ -13,10 +13,9 @@ import org.jetbrains.kotlin.fir.analysis.jvm.checkers.JvmExpressionCheckers
 import org.jetbrains.kotlin.fir.analysis.jvm.checkers.JvmTypeCheckers
 import org.jetbrains.kotlin.fir.analysis.native.checkers.NativeDeclarationCheckers
 import org.jetbrains.kotlin.fir.analysis.native.checkers.NativeExpressionCheckers
-import org.jetbrains.kotlin.fir.analysis.wasm.checkers.WasmDeclarationCheckers
-import org.jetbrains.kotlin.fir.analysis.wasm.checkers.WasmExpressionCheckers
-import org.jetbrains.kotlin.fir.analysis.wasm.checkers.WasmTypeCheckers
+import org.jetbrains.kotlin.fir.analysis.wasm.checkers.*
 import org.jetbrains.kotlin.fir.session.FirSessionConfigurator
+import org.jetbrains.kotlin.js.config.WasmTarget
 
 fun FirSessionConfigurator.registerCommonCheckers() {
     useCheckers(CommonDeclarationCheckers)
@@ -48,8 +47,18 @@ fun FirSessionConfigurator.registerNativeCheckers() {
     useCheckers(NativeExpressionCheckers)
 }
 
-fun FirSessionConfigurator.registerWasmCheckers() {
-    useCheckers(WasmDeclarationCheckers)
-    useCheckers(WasmExpressionCheckers)
-    useCheckers(WasmTypeCheckers)
+fun FirSessionConfigurator.registerWasmCheckers(target: WasmTarget) {
+    useCheckers(WasmBaseDeclarationCheckers)
+    useCheckers(WasmBaseExpressionCheckers)
+    useCheckers(WasmBaseTypeCheckers)
+
+    when (target) {
+        WasmTarget.JS -> {
+            useCheckers(WasmJsDeclarationCheckers)
+            useCheckers(WasmJsExpressionCheckers)
+        }
+        WasmTarget.WASI -> {
+            useCheckers(WasmWasiDeclarationCheckers)
+        }
+    }
 }

compiler/fir/entrypoint/src/org/jetbrains/kotlin/fir/session/FirWasmSessionFactory.kt

@@ -18,6 +18,7 @@ import org.jetbrains.kotlin.fir.resolve.providers.impl.FirBuiltinSyntheticFuncti
 import org.jetbrains.kotlin.fir.scopes.FirKotlinScopeProvider
 import org.jetbrains.kotlin.fir.session.FirSessionFactoryHelper.registerDefaultComponents
 import org.jetbrains.kotlin.incremental.components.LookupTracker
+import org.jetbrains.kotlin.js.config.WasmTarget
 import org.jetbrains.kotlin.library.KotlinLibrary
 import org.jetbrains.kotlin.name.Name
 
@@ -27,6 +28,7 @@ object FirWasmSessionFactory : FirAbstractSessionFactory() {
         sessionProvider: FirProjectSessionProvider,
         extensionRegistrars: List<FirExtensionRegistrar>,
         languageVersionSettings: LanguageVersionSettings = LanguageVersionSettingsImpl.DEFAULT,
+        wasmTarget: WasmTarget,
         lookupTracker: LookupTracker?,
         icData: KlibIcData? = null,
         registerExtraComponents: ((FirSession) -> Unit) = {},
@@ -45,7 +47,7 @@ object FirWasmSessionFactory : FirAbstractSessionFactory() {
                 it.registerDefaultComponents()
                 registerExtraComponents(it)
             },
-            registerExtraCheckers = { it.registerWasmCheckers() },
+            registerExtraCheckers = { it.registerWasmCheckers(wasmTarget) },
             createKotlinScopeProvider = { FirKotlinScopeProvider { _, declaredMemberScope, _, _, _ -> declaredMemberScope } },
             createProviders = { session, kotlinScopeProvider, symbolProvider, generatedSymbolsProvider, dependencies ->
                 listOfNotNull(