minor: rename FirScript.statements do declarations...

to simplify the following commit that actually convert the types
and wrap statements into blocks.

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/components/KtFirReferenceShortener.kt

@@ -67,7 +67,6 @@ import org.jetbrains.kotlin.resolve.calls.tower.CandidateApplicability
 import org.jetbrains.kotlin.utils.addIfNotNull
 import org.jetbrains.kotlin.utils.addToStdlib.firstIsInstanceOrNull
 import org.jetbrains.kotlin.utils.exceptions.errorWithAttachment
-import java.util.Arrays
 
 internal class KtFirReferenceShortener(
     override val analysisSession: KtFirAnalysisSession,
@@ -433,7 +432,7 @@ private class CollectingVisitor(private val collector: ElementsToShortenCollecto
     }
 
     override fun visitScript(script: FirScript) {
-        script.statements.forEach {
+        script.declarations.forEach {
             it.accept(this)
         }
     }

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/symbols/pointers/KtFirResultPropertySymbolPointer.kt

@@ -25,7 +25,7 @@ internal class KtFirResultPropertySymbolPointer(private val scriptPointer: KtSym
             scriptPointer.restoreSymbol()?.firSymbol?.fir as? FirScript
         } ?: return null
 
-        val lastProperty = script.statements.lastOrNull() as? FirProperty ?: return null
+        val lastProperty = script.declarations.lastOrNull() as? FirProperty ?: return null
         if (lastProperty.origin !is FirDeclarationOrigin.ScriptCustomization.ResultProperty) return null
         return analysisSession.firSymbolBuilder.variableLikeBuilder.buildPropertySymbol(lastProperty.symbol) as? KtKotlinPropertySymbol
     }

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/api/LowLevelFirApiFacadeForResolveOnAir.kt

@@ -364,9 +364,9 @@ object LowLevelFirApiFacadeForResolveOnAir {
      * We assume that [newScript] has the same declarations as [originalScript]
      */
     private fun restoreOriginalDeclarationsInScript(originalScript: FirScript, newScript: FirScript) {
-        val updatedStatements = ArrayList<FirStatement>(newScript.statements.size)
-        val originalDeclarations = originalScript.statements.iterator()
-        for (recreatedStatement in newScript.statements) {
+        val updatedStatements = ArrayList<FirStatement>(newScript.declarations.size)
+        val originalDeclarations = originalScript.declarations.iterator()
+        for (recreatedStatement in newScript.declarations) {
             updatedStatements += if (recreatedStatement.isScriptStatement) {
                 recreatedStatement
             } else {
@@ -379,12 +379,12 @@ object LowLevelFirApiFacadeForResolveOnAir {
             scriptDeclarationInconsistencyError(originalScript, newScript)
         }
 
-        newScript.replaceStatements(updatedStatements)
+        newScript.replaceDeclarations(updatedStatements)
     }
 
     private fun scriptDeclarationInconsistencyError(originalScript: FirScript, newScript: FirScript): Nothing {
-        val originalDeclarations = originalScript.statements.filterNot(FirStatement::isScriptStatement)
-        val newDeclarations = newScript.statements.filterNot(FirStatement::isScriptStatement)
+        val originalDeclarations = originalScript.declarations.filterNot(FirStatement::isScriptStatement)
+        val newDeclarations = newScript.declarations.filterNot(FirStatement::isScriptStatement)
         errorWithAttachment("New script has ${if (newDeclarations.size > originalDeclarations.size) "more" else "less"} declarations") {
             withFirEntry("originalScript", originalScript)
             withFirEntry("newScript", newScript)

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/file/structure/FileStructureElement.kt

@@ -141,7 +141,7 @@ internal class RootScriptStructureElement(
 internal fun <T, R> visitScriptDependentElements(script: FirScript, visitor: FirVisitor<T, R>, data: R) {
     script.annotations.forEach { it.accept(visitor, data) }
     script.contextReceivers.forEach { it.accept(visitor, data) }
-    script.statements.forEach {
+    script.declarations.forEach {
         if (it.isScriptStatement) {
             it.accept(visitor, data)
         }

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/lazy/resolve/FirLazyBodiesCalculator.kt

@@ -87,7 +87,7 @@ internal object FirLazyBodiesCalculator {
 
     fun createStatementsForScript(script: FirScript): List<FirStatement> {
         val newScript = revive<FirScript>(FirDesignation(emptyList(), script))
-        return newScript.statements
+        return newScript.declarations
     }
 
     fun needCalculatingAnnotationCall(firAnnotationCall: FirAnnotationCall): Boolean =

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/lazy/resolve/LLFirPhaseUpdater.kt

@@ -37,7 +37,7 @@ internal object LLFirPhaseUpdater {
                 is FirAnonymousInitializer -> target.body?.accept(PhaseUpdatingTransformer, newPhase)
                 is FirScript -> {
                     target.parameters.forEach { it.accept(PhaseUpdatingTransformer, newPhase) }
-                    for (statement in target.statements) {
+                    for (statement in target.declarations) {
                         if (!statement.isScriptStatement) continue
                         statement.accept(PhaseUpdatingTransformer, newPhase)
                     }

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/transformers/LLFirAbstractBodyTargetResolver.kt

@@ -85,7 +85,7 @@ internal abstract class LLFirAbstractBodyTargetResolver(
     protected fun resolveScript(script: FirScript) {
         transformer.declarationsTransformer?.withScript(script) {
             script.parameters.forEach { it.transformSingle(transformer, ResolutionMode.ContextIndependent) }
-            script.transformStatements(
+            script.transformDeclarations(
                 transformer = object : FirTransformer<Any?>() {
                     override fun <E : FirElement> transformElement(element: E, data: Any?): E {
                         if (element !is FirStatement || !element.isScriptStatement) return element

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/transformers/LLFirBodyLazyResolver.kt

@@ -291,11 +291,11 @@ private class LLFirBodyTargetResolver(
 
 internal object BodyStateKeepers {
     val SCRIPT: StateKeeper<FirScript, FirDesignationWithFile> = stateKeeper { script, designation ->
-        val oldStatements = script.statements
+        val oldStatements = script.declarations
         if (oldStatements.none { it.isScriptStatement } || script.isCertainlyResolved) return@stateKeeper
 
         add(RESULT_PROPERTY, designation)
-        add(FirScript::statements, FirScript::replaceStatements) {
+        add(FirScript::declarations, FirScript::replaceDeclarations) {
             val recreatedStatements = FirLazyBodiesCalculator.createStatementsForScript(script)
             requireSameSize(oldStatements, recreatedStatements)
 
@@ -447,7 +447,7 @@ private fun StateKeeperScope<FirFunction, FirDesignationWithFile>.preserveContra
     }
 }
 
-private fun FirScript.findResultProperty(): FirProperty? = statements.findIsInstanceAnd<FirProperty> {
+private fun FirScript.findResultProperty(): FirProperty? = declarations.findIsInstanceAnd<FirProperty> {
     it.origin == FirDeclarationOrigin.ScriptCustomization.ResultProperty
 }
 

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/transformers/LLFirCompilerAnnotationsLazyResolver.kt

@@ -321,7 +321,7 @@ private fun FirAnnotationContainer.hasAnnotationsToResolve(): Boolean {
                 this.setter?.hasAnnotationsToResolve() == true ||
                 this.backingField?.hasAnnotationsToResolve() == true
 
-        is FirScript -> statements.any { it.isScriptDependentDeclaration && it.hasAnnotationsToResolve() }
+        is FirScript -> declarations.any { it.isScriptDependentDeclaration && it.hasAnnotationsToResolve() }
         else -> false
     }
 }

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/transformers/LLFirImplicitTypesLazyResolver.kt

@@ -168,7 +168,7 @@ internal class LLFirImplicitBodyTargetResolver(
             }
 
             is FirScript -> {
-                if (target.statements.any { it.isScriptDependentDeclaration }) {
+                if (target.declarations.any { it.isScriptDependentDeclaration }) {
                     resolve(target, BodyStateKeepers.SCRIPT)
                 }
             }

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/util/FirElementFinder.kt

@@ -97,7 +97,7 @@ internal object FirElementFinder {
                     }
 
                     subDeclaration is FirScript -> {
-                        val scriptDeclarations = subDeclaration.statements.asSequence().filterIsInstance<FirDeclaration>()
+                        val scriptDeclarations = subDeclaration.declarations.asSequence().filterIsInstance<FirDeclaration>()
                         if (find(scriptDeclarations.asIterable(), classIdPathIndex)) {
                             return true
                         }

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/util/declarationUtils.kt

@@ -60,7 +60,7 @@ internal fun KtDeclaration.findSourceNonLocalFirDeclaration(firFile: FirFile, pr
                                 return@findSourceNonLocalFirDeclarationByProvider firScript?.takeIf { it.psi == declaration }
                             }
 
-                            firScript?.statements?.filterIsInstance<FirDeclaration>()
+                            firScript?.declarations?.filterIsInstance<FirDeclaration>()
                         } else {
                             firFile.declarations
                         }
@@ -211,7 +211,7 @@ val FirDeclaration.isGeneratedDeclaration
     get() = realPsi == null
 
 internal inline fun FirScript.forEachDeclaration(action: (FirDeclaration) -> Unit) {
-    for (statement in statements) {
+    for (statement in declarations) {
         if (statement.isScriptStatement) continue
         action(statement as FirDeclaration)
     }
@@ -242,7 +242,7 @@ internal val FirStatement.isScriptDependentDeclaration: Boolean
     get() = this is FirDeclaration && origin == FirDeclarationOrigin.ScriptCustomization.ResultProperty
 
 internal inline fun FirScript.forEachDependentDeclaration(action: (FirDeclaration) -> Unit) {
-    for (statement in statements) {
+    for (statement in declarations) {
         if (statement !is FirDeclaration || !statement.isScriptDependentDeclaration) continue
         action(statement)
     }

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/util/firCheckResolvedUtils.kt

@@ -108,7 +108,7 @@ internal fun checkBodyIsResolved(function: FirFunction) {
 }
 
 internal fun checkStatementsAreResolved(script: FirScript) {
-    for (statement in script.statements) {
+    for (statement in script.declarations) {
         if (statement.isScriptStatement && statement is FirExpression) {
             checkExpressionTypeIsResolved(statement.coneTypeOrNull, "script statement", script) {
                 withFirEntry("expression", statement)

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/AbstractFirLazyDeclarationResolveTestCase.kt

@@ -91,7 +91,7 @@ abstract class AbstractFirLazyDeclarationResolveTestCase : AbstractLowLevelApiLa
         val (classSymbol, declarations) = when (symbol) {
             is FirClassSymbol -> symbol to symbol.declarationSymbols
             is FirScriptSymbol -> {
-                symbol to symbol.fir.let { it.parameters + it.statements }.mapNotNull { (it as? FirDeclaration)?.symbol }
+                symbol to symbol.fir.let { it.parameters + it.declarations }.mapNotNull { (it as? FirDeclaration)?.symbol }
             }
 
             else -> error("Unknown container: ${symbol::class.simpleName}")

compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/declaration/FirTopLevelPropertiesChecker.kt

@@ -41,7 +41,7 @@ object FirTopLevelPropertiesChecker : FirFileChecker() {
 
 object FirScriptPropertiesChecker : FirScriptChecker() {
     override fun check(declaration: FirScript, context: CheckerContext, reporter: DiagnosticReporter) {
-        val topLevelProperties = declaration.statements.filterIsInstance<FirProperty>()
+        val topLevelProperties = declaration.declarations.filterIsInstance<FirProperty>()
         checkFileLikeDeclaration(declaration, topLevelProperties, context, reporter)
     }
 }

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrConverter.kt

@@ -518,7 +518,7 @@ class Fir2IrConverter(
                 addDeclarationToParentIfNeeded(irScript)
                 declarationStorage.withScope(irScript.symbol) {
                     irScript.parent = parent
-                    for (scriptStatement in declaration.statements) {
+                    for (scriptStatement in declaration.declarations) {
                         when (scriptStatement) {
                             is FirRegularClass -> {
                                 registerClassAndNestedClasses(scriptStatement, irScript)
@@ -528,7 +528,7 @@ class Fir2IrConverter(
                             else -> {}
                         }
                     }
-                    for (scriptStatement in declaration.statements) {
+                    for (scriptStatement in declaration.declarations) {
                         if (scriptStatement is FirDeclaration) {
                             processMemberDeclaration(scriptStatement, containingClass = null, irScript, delegateFieldToPropertyMap = null)
                         }

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrVisitor.kt

@@ -254,7 +254,7 @@ class Fir2IrVisitor(
 
             conversionScope.withParent(irScript) {
                 val destructComposites = mutableMapOf<FirVariableSymbol<*>, IrComposite>()
-                for (statement in script.statements) {
+                for (statement in script.declarations) {
                     val irStatement = if (statement is FirDeclaration) {
                         when {
                             statement is FirProperty && statement.name == SpecialNames.UNDERSCORE_FOR_UNUSED_VAR -> {

compiler/fir/providers/src/org/jetbrains/kotlin/fir/scopes/impl/FirScriptDeclarationsScope.kt

@@ -22,7 +22,7 @@ class FirScriptDeclarationsScope(
 
     private val callablesIndex: Map<Name, List<FirCallableSymbol<*>>> = run {
         val result = mutableMapOf<Name, MutableList<FirCallableSymbol<*>>>()
-        loop@ for (statement in script.statements) {
+        loop@ for (statement in script.declarations) {
             if (statement is FirCallableDeclaration) {
                 val name = when (statement) {
                     is FirVariable -> if (statement.isSynthetic) continue@loop else statement.name
@@ -38,7 +38,7 @@ class FirScriptDeclarationsScope(
 
     private val classIndex: Map<Name, FirRegularClassSymbol> = run {
         val result = mutableMapOf<Name, FirRegularClassSymbol>()
-        for (declaration in script.statements) {
+        for (declaration in script.declarations) {
             if (declaration is FirRegularClass) {
                 result[declaration.name] = declaration.symbol
             }

compiler/fir/raw-fir/psi2fir/src/org/jetbrains/kotlin/fir/builder/PsiRawFirBuilder.kt

@@ -1286,7 +1286,7 @@ open class PsiRawFirBuilder(
                 for (declaration in script.declarations) {
                     when (declaration) {
                         is KtScriptInitializer -> {
-                            declaration.body?.let { statements.add(it.toFirStatement()) }
+                            declaration.body?.let { declarations.add(it.toFirStatement()) }
                         }
                         is KtDestructuringDeclaration -> {
                             val destructuringContainerVar = generateTemporaryVariable(
@@ -1299,9 +1299,9 @@ open class PsiRawFirBuilder(
                             ).apply {
                                 isDestructuringDeclarationContainerVariable = true
                             }
-                            statements.add(destructuringContainerVar)
+                            declarations.add(destructuringContainerVar)
 
-                            statements.addDestructuringVariables(
+                            declarations.addDestructuringVariables(
                                 moduleData,
                                 declaration,
                                 destructuringContainerVar,
@@ -1312,7 +1312,7 @@ open class PsiRawFirBuilder(
                             }
                         }
                         else -> {
-                            statements.add(declaration.toFirStatement())
+                            declarations.add(declaration.toFirStatement())
                         }
                     }
                 }

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/plugin/AbstractFirSpecificAnnotationResolveTransformer.kt

@@ -403,7 +403,7 @@ abstract class AbstractFirSpecificAnnotationResolveTransformer(
             computationSession.recordThatAnnotationsAreResolved(script)
             transformDeclaration(script, null).also {
                 transformChildren(script) {
-                    script.transformStatements(this, data)
+                    script.transformDeclarations(this, data)
                 }
             }
         }

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/declarations/FirScript.kt

@@ -30,7 +30,7 @@ abstract class FirScript : FirDeclaration(), FirControlFlowGraphOwner {
     abstract override val attributes: FirDeclarationAttributes
     abstract override val controlFlowGraphReference: FirControlFlowGraphReference?
     abstract val name: Name
-    abstract val statements: List<FirStatement>
+    abstract val declarations: List<FirStatement>
     abstract override val symbol: FirScriptSymbol
     abstract val parameters: List<FirVariable>
     abstract val contextReceivers: List<FirContextReceiver>
@@ -47,9 +47,9 @@ abstract class FirScript : FirDeclaration(), FirControlFlowGraphOwner {
 
     abstract override fun replaceControlFlowGraphReference(newControlFlowGraphReference: FirControlFlowGraphReference?)
 
-    abstract fun replaceStatements(newStatements: List<FirStatement>)
+    abstract fun replaceDeclarations(newDeclarations: List<FirStatement>)
 
     abstract override fun <D> transformAnnotations(transformer: FirTransformer<D>, data: D): FirScript
 
-    abstract fun <D> transformStatements(transformer: FirTransformer<D>, data: D): FirScript
+    abstract fun <D> transformDeclarations(transformer: FirTransformer<D>, data: D): FirScript
 }

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/declarations/builder/FirScriptBuilder.kt

@@ -32,7 +32,7 @@ class FirScriptBuilder : FirAnnotationContainerBuilder {
     lateinit var origin: FirDeclarationOrigin
     var attributes: FirDeclarationAttributes = FirDeclarationAttributes()
     lateinit var name: Name
-    val statements: MutableList<FirStatement> = mutableListOf()
+    val declarations: MutableList<FirStatement> = mutableListOf()
     lateinit var symbol: FirScriptSymbol
     val parameters: MutableList<FirVariable> = mutableListOf()
     val contextReceivers: MutableList<FirContextReceiver> = mutableListOf()
@@ -47,7 +47,7 @@ class FirScriptBuilder : FirAnnotationContainerBuilder {
             origin,
             attributes,
             name,
-            statements.toMutableOrEmpty(),
+            declarations.toMutableOrEmpty(),
             symbol,
             parameters,
             contextReceivers.toMutableOrEmpty(),
@@ -78,7 +78,7 @@ inline fun buildScriptCopy(original: FirScript, init: FirScriptBuilder.() -> Uni
     copyBuilder.origin = original.origin
     copyBuilder.attributes = original.attributes.copy()
     copyBuilder.name = original.name
-    copyBuilder.statements.addAll(original.statements)
+    copyBuilder.declarations.addAll(original.declarations)
     copyBuilder.symbol = original.symbol
     copyBuilder.parameters.addAll(original.parameters)
     copyBuilder.contextReceivers.addAll(original.contextReceivers)

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/declarations/impl/FirScriptImpl.kt

@@ -33,7 +33,7 @@ internal class FirScriptImpl(
     override val origin: FirDeclarationOrigin,
     override val attributes: FirDeclarationAttributes,
     override val name: Name,
-    override var statements: MutableOrEmptyList<FirStatement>,
+    override var declarations: MutableOrEmptyList<FirStatement>,
     override val symbol: FirScriptSymbol,
     override val parameters: MutableList<FirVariable>,
     override var contextReceivers: MutableOrEmptyList<FirContextReceiver>,
@@ -49,7 +49,7 @@ internal class FirScriptImpl(
     override fun <R, D> acceptChildren(visitor: FirVisitor<R, D>, data: D) {
         annotations.forEach { it.accept(visitor, data) }
         controlFlowGraphReference?.accept(visitor, data)
-        statements.forEach { it.accept(visitor, data) }
+        declarations.forEach { it.accept(visitor, data) }
         parameters.forEach { it.accept(visitor, data) }
         contextReceivers.forEach { it.accept(visitor, data) }
     }
@@ -57,7 +57,7 @@ internal class FirScriptImpl(
     override fun <D> transformChildren(transformer: FirTransformer<D>, data: D): FirScriptImpl {
         transformAnnotations(transformer, data)
         controlFlowGraphReference = controlFlowGraphReference?.transform(transformer, data)
-        transformStatements(transformer, data)
+        transformDeclarations(transformer, data)
         parameters.transformInplace(transformer, data)
         contextReceivers.transformInplace(transformer, data)
         return this
@@ -68,8 +68,8 @@ internal class FirScriptImpl(
         return this
     }
 
-    override fun <D> transformStatements(transformer: FirTransformer<D>, data: D): FirScriptImpl {
-        statements.transformInplace(transformer, data)
+    override fun <D> transformDeclarations(transformer: FirTransformer<D>, data: D): FirScriptImpl {
+        declarations.transformInplace(transformer, data)
         return this
     }
 
@@ -81,7 +81,7 @@ internal class FirScriptImpl(
         controlFlowGraphReference = newControlFlowGraphReference
     }
 
-    override fun replaceStatements(newStatements: List<FirStatement>) {
-        statements = newStatements.toMutableOrEmpty()
+    override fun replaceDeclarations(newDeclarations: List<FirStatement>) {
+        declarations = newDeclarations.toMutableOrEmpty()
     }
 }

compiler/fir/tree/src/org/jetbrains/kotlin/fir/renderer/FirRenderer.kt

@@ -223,7 +223,7 @@ class FirRenderer(
 
             printer.newLine()
 
-            script.statements.forEach {
+            script.declarations.forEach {
                 it.accept(this)
                 printer.newLine()
             }

compiler/fir/tree/tree-generator/src/org/jetbrains/kotlin/fir/tree/generator/NodeConfigurator.kt

@@ -494,7 +494,7 @@ object NodeConfigurator : AbstractFieldConfigurator<FirTreeBuilder>(FirTreeBuild
 
         script.configure {
             +name
-            +fieldList(statement, withReplace = true, useMutableOrEmpty = true).withTransform()
+            +FieldList("declarations", statement, withReplace = true, useMutableOrEmpty = true).withTransform()
             +symbol("FirScriptSymbol")
             +fieldList("parameters", variable, withReplace = false)
             +fieldList(contextReceiver, useMutableOrEmpty = true)

plugins/scripting/scripting-compiler/src/org/jetbrains/kotlin/scripting/compiler/plugin/services/FirScriptConfigurationExtensionImpl.kt

@@ -137,10 +137,10 @@ class FirScriptConfiguratorExtensionImpl(
         }
 
         configuration[ScriptCompilationConfiguration.resultField]?.takeIf { it.isNotBlank() }?.let { resultFieldName ->
-            val lastExpression = statements.lastOrNull()
+            val lastExpression = declarations.lastOrNull()
             if (lastExpression != null && lastExpression is FirExpression) {
-                statements.removeAt(statements.size - 1)
-                statements.add(
+                declarations.removeAt(declarations.size - 1)
+                declarations.add(
                     @OptIn(UnresolvedExpressionTypeAccess::class)
                     buildProperty {
                         this.name = Name.identifier(resultFieldName)