[FIR] Fix all usages of declarationSiteSession

compiler/fir/fir2ir/jvm-backend/src/org/jetbrains/kotlin/fir/backend/jvm/FirMetadataSerializer.kt

@@ -79,7 +79,7 @@ class FirMetadataSerializer(
         val function = this
         return buildAnonymousFunction {
             val typeParameterSet = function.typeParameters.filterIsInstanceTo(mutableSetOf<FirTypeParameter>())
-            declarationSiteSession = function.declarationSiteSession
+            moduleData = function.moduleData
             origin = FirDeclarationOrigin.Source
             symbol = FirAnonymousFunctionSymbol()
             returnTypeRef = function.returnTypeRef.approximated(toSuper = true, typeParameterSet)
@@ -98,7 +98,7 @@ class FirMetadataSerializer(
         val accessor = this
         return buildPropertyAccessor {
             val typeParameterSet = accessor.typeParameters.toMutableSet()
-            declarationSiteSession = accessor.declarationSiteSession
+            moduleData = accessor.moduleData
             origin = FirDeclarationOrigin.Source
             returnTypeRef = accessor.returnTypeRef.approximated(toSuper = true, typeParameterSet)
             symbol = FirPropertyAccessorSymbol()
@@ -118,7 +118,7 @@ class FirMetadataSerializer(
         val property = this
         return buildProperty {
             val typeParameterSet = property.typeParameters.toMutableSet()
-            declarationSiteSession = property.declarationSiteSession
+            moduleData = property.moduleData
             origin = FirDeclarationOrigin.Source
             symbol = FirPropertySymbol(property.symbol.callableId)
             returnTypeRef = property.returnTypeRef.approximated(toSuper = true, typeParameterSet)

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrDeclarationStorage.kt

@@ -739,7 +739,7 @@ class Fir2IrDeclarationStorage(
         val field = this
         return buildProperty {
             source = field.source
-            declarationSiteSession = field.declarationSiteSession
+            moduleData = field.moduleData
             origin = field.origin
             returnTypeRef = field.returnTypeRef
             name = field.name

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

@@ -574,7 +574,7 @@ class Fir2IrVisitor(
     override fun visitElvisExpression(elvisExpression: FirElvisExpression, data: Any?): IrElement {
         val firLhsVariable = buildProperty {
             source = elvisExpression.source
-            declarationSiteSession = session
+            moduleData = session.moduleData
             origin = FirDeclarationOrigin.Source
             returnTypeRef = elvisExpression.lhs.typeRef
             name = Name.special("<elvis>")

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

@@ -14,7 +14,7 @@ sealed class FirMetadataSource : MetadataSource {
     abstract val fir: FirDeclaration
 
     val declarationSiteSession: FirSession
-        get() = fir.declarationSiteSession
+        get() = fir.moduleData.session
 
     override val name: Name?
         get() = when (val fir = fir) {

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/generators/DataClassMembersGenerator.kt

@@ -16,8 +16,8 @@ import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.fir.declarations.builder.buildSimpleFunction
 import org.jetbrains.kotlin.fir.declarations.builder.buildValueParameter
 import org.jetbrains.kotlin.fir.declarations.impl.FirDeclarationStatusImpl
+import org.jetbrains.kotlin.fir.moduleData
 import org.jetbrains.kotlin.fir.scopes.unsubstitutedScope
-import org.jetbrains.kotlin.name.CallableId
 import org.jetbrains.kotlin.fir.symbols.ConeClassLikeLookupTag
 import org.jetbrains.kotlin.fir.symbols.impl.FirNamedFunctionSymbol
 import org.jetbrains.kotlin.fir.symbols.impl.FirVariableSymbol
@@ -42,6 +42,7 @@ import org.jetbrains.kotlin.ir.types.classOrNull
 import org.jetbrains.kotlin.ir.types.classifierOrNull
 import org.jetbrains.kotlin.ir.util.*
 import org.jetbrains.kotlin.ir.util.DataClassMembersGenerator
+import org.jetbrains.kotlin.name.CallableId
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.util.OperatorNameConventions.EQUALS
 import org.jetbrains.kotlin.util.OperatorNameConventions.TO_STRING
@@ -263,7 +264,7 @@ class DataClassMembersGenerator(val components: Fir2IrComponents) {
                 this.name = name
                 this.symbol = FirNamedFunctionSymbol(CallableId(lookupTag.classId, name))
                 this.status = FirDeclarationStatusImpl(Visibilities.Public, Modality.FINAL)
-                declarationSiteSession = components.session
+                moduleData = components.session.moduleData
                 this.returnTypeRef = when (returnType) {
                     components.irBuiltIns.booleanType -> FirImplicitBooleanTypeRef(null)
                     components.irBuiltIns.intType -> FirImplicitIntTypeRef(null)
@@ -275,7 +276,7 @@ class DataClassMembersGenerator(val components: Fir2IrComponents) {
                         buildValueParameter {
                             this.name = Name.identifier("other")
                             origin = FirDeclarationOrigin.Synthetic
-                            declarationSiteSession = components.session
+                            moduleData = components.session.moduleData
                             this.returnTypeRef = FirImplicitNullableAnyTypeRef(null)
                             this.symbol = FirVariableSymbol(this.name)
                             isCrossinline = false