[K2] Add new resolve phase CONSTANT_EVALUATION

During this phase, the compiler will evaluate initializers of
const properties and defaults of annotation's constructor.
Evaluation results will be stored in corresponding attributes.

#KT-64151

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/FirConstantEvaluationProcessor.kt

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.fir.resolve.transformers
+
+import org.jetbrains.kotlin.fir.FirElement
+import org.jetbrains.kotlin.fir.FirSession
+import org.jetbrains.kotlin.fir.declarations.FirFile
+import org.jetbrains.kotlin.fir.declarations.FirResolvePhase
+import org.jetbrains.kotlin.fir.resolve.ScopeSession
+import org.jetbrains.kotlin.fir.visitors.FirTransformer
+
+@OptIn(AdapterForResolveProcessor::class)
+class FirConstantEvaluationProcessor(
+    session: FirSession,
+    scopeSession: ScopeSession
+) : FirTransformerBasedResolveProcessor(session, scopeSession, FirResolvePhase.CONSTANT_EVALUATION) {
+    override val transformer = FirConstantEvaluationTransformerAdapter(session, scopeSession)
+}
+
+@Suppress("UNUSED_PARAMETER")
+@AdapterForResolveProcessor
+class FirConstantEvaluationTransformerAdapter(session: FirSession, scopeSession: ScopeSession) : FirTransformer<Any?>() {
+    override fun <E : FirElement> transformElement(element: E, data: Any?): E {
+        error("Should only be called via transformFile()")
+    }
+
+    override fun transformFile(file: FirFile, data: Any?): FirFile {
+        return file
+    }
+}

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/FirTotalResolveProcessor.kt

@@ -85,6 +85,7 @@ fun FirResolvePhase.createCompilerProcessorByPhase(
         STATUS -> FirStatusResolveProcessor(session, scopeSession)
         CONTRACTS -> FirContractResolveProcessor(session, scopeSession)
         IMPLICIT_TYPES_BODY_RESOLVE -> FirImplicitTypeBodyResolveProcessor(session, scopeSession)
+        CONSTANT_EVALUATION -> FirConstantEvaluationProcessor(session, scopeSession)
         ANNOTATION_ARGUMENTS -> FirAnnotationArgumentsProcessor(session, scopeSession)
         BODY_RESOLVE -> FirBodyResolveProcessor(session, scopeSession)
         EXPECT_ACTUAL_MATCHING -> FirExpectActualMatcherProcessor(session, scopeSession)

compiler/fir/tree/src/org/jetbrains/kotlin/fir/declarations/FirResolvePhase.kt

@@ -178,6 +178,11 @@ enum class FirResolvePhase(val noProcessor: Boolean = false) {
      */
     IMPLICIT_TYPES_BODY_RESOLVE,
 
+    /**
+     * The compiler evaluates expressions that are used as initializers for const properties and defaults of annotation's constructor.
+     */
+    CONSTANT_EVALUATION,
+
     /**
      * The compiler resolves arguments of annotations in declaration headers.
      */