Minor. Pull user-data related things to CallableDescriptor

Currently, we assume user data for all non-FunctionDescriptor
declarations is empty

compiler/backend/src/org/jetbrains/kotlin/codegen/AccessorForFunctionDescriptor.kt

@@ -48,7 +48,7 @@ class AccessorForFunctionDescriptor(
 
         isSuspend = calleeDescriptor.isSuspend
         if (calleeDescriptor.getUserData(INITIAL_DESCRIPTOR_FOR_SUSPEND_FUNCTION) != null) {
-            userDataMap = LinkedHashMap<FunctionDescriptor.UserDataKey<*>, Any>()
+            userDataMap = LinkedHashMap<CallableDescriptor.UserDataKey<*>, Any>()
             userDataMap[INITIAL_DESCRIPTOR_FOR_SUSPEND_FUNCTION] =
                     calleeDescriptor.getUserData(INITIAL_DESCRIPTOR_FOR_SUSPEND_FUNCTION)
         }

compiler/backend/src/org/jetbrains/kotlin/codegen/coroutines/CoroutineCodegen.kt

@@ -50,7 +50,7 @@ abstract class AbstractCoroutineCodegen(
     element: KtElement,
     closureContext: ClosureContext,
     classBuilder: ClassBuilder,
-    private val userDataForDoResume: Map<out FunctionDescriptor.UserDataKey<*>, *>? = null
+    private val userDataForDoResume: Map<out CallableDescriptor.UserDataKey<*>, *>? = null
 ) : ClosureCodegen(
     outerExpressionCodegen.state,
     element, null, closureContext, null,

compiler/backend/src/org/jetbrains/kotlin/codegen/coroutines/coroutineCodegenUtil.kt

@@ -117,10 +117,10 @@ private val GET_CONTEXT_METHOD_NAME = "getContext"
 data class ResolvedCallWithRealDescriptor(val resolvedCall: ResolvedCall<*>, val fakeContinuationExpression: KtExpression)
 
 @JvmField
-val INITIAL_DESCRIPTOR_FOR_SUSPEND_FUNCTION = object : FunctionDescriptor.UserDataKey<FunctionDescriptor> {}
+val INITIAL_DESCRIPTOR_FOR_SUSPEND_FUNCTION = object : CallableDescriptor.UserDataKey<FunctionDescriptor> {}
 
 @JvmField
-val INITIAL_SUSPEND_DESCRIPTOR_FOR_DO_RESUME = object : FunctionDescriptor.UserDataKey<FunctionDescriptor> {}
+val INITIAL_SUSPEND_DESCRIPTOR_FOR_DO_RESUME = object : CallableDescriptor.UserDataKey<FunctionDescriptor> {}
 
 // Resolved calls to suspension function contain descriptors as they visible within coroutines:
 // E.g. `fun <V> await(f: CompletableFuture<V>): V` instead of `fun <V> await(f: CompletableFuture<V>, machine: Continuation<V>): Unit`

compiler/frontend/src/org/jetbrains/kotlin/contracts/ContractDeserializerImpl.kt

@@ -19,6 +19,7 @@ package org.jetbrains.kotlin.contracts
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
 import org.jetbrains.kotlin.contracts.description.*
 import org.jetbrains.kotlin.contracts.description.expressions.*
+import org.jetbrains.kotlin.descriptors.CallableDescriptor
 import org.jetbrains.kotlin.descriptors.FunctionDescriptor
 import org.jetbrains.kotlin.metadata.ProtoBuf
 import org.jetbrains.kotlin.metadata.deserialization.Flags
@@ -36,7 +37,7 @@ class ContractDeserializerImpl(private val configuration: DeserializationConfigu
         ownerFunction: FunctionDescriptor,
         typeTable: TypeTable,
         typeDeserializer: TypeDeserializer
-    ): Pair<FunctionDescriptor.UserDataKey<*>, LazyContractProvider>? {
+    ): Pair<CallableDescriptor.UserDataKey<*>, LazyContractProvider>? {
         if (!proto.hasContract()) return null
 
         if (!configuration.readDeserializedContracts) return null

compiler/frontend/src/org/jetbrains/kotlin/resolve/FunctionDescriptorResolver.kt

@@ -204,7 +204,7 @@ class FunctionDescriptorResolver(
         )
 
         val contractProvider = getContractProvider(functionDescriptor, trace, scope, dataFlowInfo, function)
-        val userData = mutableMapOf<FunctionDescriptor.UserDataKey<*>, Any>().apply {
+        val userData = mutableMapOf<CallableDescriptor.UserDataKey<*>, Any>().apply {
             if (contractProvider != null) {
                 put(ContractProviderKey, contractProvider)
             }

compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/DslMarkerUtils.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.resolve.calls
 
+import org.jetbrains.kotlin.descriptors.CallableDescriptor
 import org.jetbrains.kotlin.descriptors.FunctionDescriptor
 import org.jetbrains.kotlin.descriptors.TypeAliasDescriptor
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
@@ -20,7 +21,7 @@ import org.jetbrains.kotlin.utils.addToStdlib.safeAs
 
 object DslMarkerUtils {
 
-    object FunctionTypeAnnotationsKey : FunctionDescriptor.UserDataKey<Annotations>
+    object FunctionTypeAnnotationsKey : CallableDescriptor.UserDataKey<Annotations>
 
     data class DslMarkersFromReceiver(
         val common: Set<FqName>,

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/descriptors/WrappedDescriptors.kt

@@ -80,6 +80,8 @@ abstract class WrappedCallableDescriptor<T : IrDeclaration>(
     override fun acceptVoid(visitor: DeclarationDescriptorVisitor<Void, Void>?) {
         TODO("not implemented")
     }
+
+    override fun <V : Any?> getUserData(key: CallableDescriptor.UserDataKey<V>?): V? = null
 }
 
 open class WrappedValueParameterDescriptor(
@@ -289,7 +291,7 @@ open class WrappedSimpleFunctionDescriptor(
 
     override fun getInitialSignatureDescriptor() = null
 
-    override fun <V : Any?> getUserData(key: FunctionDescriptor.UserDataKey<V>?): V? = null
+    override fun <V : Any?> getUserData(key: CallableDescriptor.UserDataKey<V>?): V? = null
 
     override fun newCopyBuilder(): FunctionDescriptor.CopyBuilder<out SimpleFunctionDescriptor> {
         TODO("not implemented")
@@ -378,7 +380,7 @@ open class WrappedClassConstructorDescriptor(
 
     override fun isSuspend() = false
 
-    override fun <V : Any?> getUserData(key: FunctionDescriptor.UserDataKey<V>?): V? = null
+    override fun <V : Any?> getUserData(key: CallableDescriptor.UserDataKey<V>?): V? = null
 
     override fun isExternal() = owner.isExternal
 
@@ -586,4 +588,6 @@ open class WrappedPropertyDescriptor(
     override fun getDelegateField(): FieldDescriptor? {
         TODO("not implemented")
     }
+
+    override fun <V : Any?> getUserData(key: CallableDescriptor.UserDataKey<V>?): V? = null
 }

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/descriptors/IrBuiltinFunctionDescriptor.kt

@@ -47,7 +47,7 @@ abstract class IrBuiltinOperatorDescriptorBase(containingDeclaration: Declaratio
     override fun getKind(): CallableMemberDescriptor.Kind = CallableMemberDescriptor.Kind.SYNTHESIZED
     override fun getInitialSignatureDescriptor(): FunctionDescriptor? = null
     override fun isExternal(): Boolean = false
-    override fun <V : Any> getUserData(key: FunctionDescriptor.UserDataKey<V>?): V? = null
+    override fun <V : Any> getUserData(key: CallableDescriptor.UserDataKey<V>?): V? = null
     override fun isHiddenForResolutionEverywhereBesideSupercalls(): Boolean = false
     override fun isHiddenToOvercomeSignatureClash(): Boolean = false
     override fun isInfix(): Boolean = false

compiler/resolution/src/org/jetbrains/kotlin/contracts/description/LazyContractProvider.kt

@@ -16,7 +16,7 @@
 
 package org.jetbrains.kotlin.contracts.description
 
-import org.jetbrains.kotlin.descriptors.FunctionDescriptor
+import org.jetbrains.kotlin.descriptors.CallableDescriptor
 import org.jetbrains.kotlin.serialization.deserialization.ContractProvider
 
 /**
@@ -51,4 +51,4 @@ class LazyContractProvider(private val computation: () -> Any?) : ContractProvid
 }
 
 // For storing into UserDataMap of FunctionDescriptor
-object ContractProviderKey : FunctionDescriptor.UserDataKey<LazyContractProvider?>
+object ContractProviderKey : CallableDescriptor.UserDataKey<LazyContractProvider?>

compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/util/FakeCallableDescriptorForObject.kt

@@ -76,4 +76,6 @@ open class FakeCallableDescriptorForObject(
     override fun getContainingDeclaration() = classDescriptor.getClassObjectReferenceTarget().containingDeclaration
 
     override fun substitute(substitutor: TypeSubstitutor) = this
+
+    override fun <V> getUserData(key: CallableDescriptor.UserDataKey<V>?): V? = null
 }

core/descriptors.jvm/src/org/jetbrains/kotlin/load/java/lazy/descriptors/LazyJavaScope.kt

@@ -144,7 +144,7 @@ abstract class LazyJavaScope(protected val c: LazyJavaResolverContext) : MemberS
             if (effectiveSignature.receiverType != null)
                     mapOf(JavaMethodDescriptor.ORIGINAL_VALUE_PARAMETER_FOR_EXTENSION_RECEIVER to valueParameters.descriptors.first())
                 else
-                    emptyMap<FunctionDescriptor.UserDataKey<ValueParameterDescriptor>, ValueParameterDescriptor>()
+                    emptyMap<CallableDescriptor.UserDataKey<ValueParameterDescriptor>, ValueParameterDescriptor>()
         )
 
         functionDescriptorImpl.setParameterNamesStatus(effectiveSignature.hasStableParameterNames, valueParameters.hasSynthesizedNames)

core/descriptors/src/org/jetbrains/kotlin/descriptors/CallableDescriptor.java

@@ -64,4 +64,10 @@ public interface CallableDescriptor extends DeclarationDescriptorWithVisibility,
 
     @NotNull
     Collection<? extends CallableDescriptor> getOverriddenDescriptors();
+
+    interface UserDataKey<V> {}
+
+    // TODO: pull up userdata related members to DeclarationDescriptor and use more efficient implementation (e.g. THashMap)
+    @Nullable
+    <V> V getUserData(UserDataKey<V> key);
 }

core/descriptors/src/org/jetbrains/kotlin/descriptors/FunctionDescriptor.java

@@ -68,12 +68,6 @@ public interface FunctionDescriptor extends CallableMemberDescriptor {
 
     boolean isSuspend();
 
-    interface UserDataKey<V> {}
-
-    // TODO: pull up userdata related members to DeclarationDescriptor and use more efficient implementation (e.g. THashMap)
-    @Nullable
-    <V> V getUserData(UserDataKey<V> key);
-
     @NotNull
     @Override
     CopyBuilder<? extends FunctionDescriptor> newCopyBuilder();

core/descriptors/src/org/jetbrains/kotlin/descriptors/impl/AbstractReceiverParameterDescriptor.java

@@ -135,4 +135,10 @@ public abstract class AbstractReceiverParameterDescriptor extends DeclarationDes
     public SourceElement getSource() {
         return SourceElement.NO_SOURCE;
     }
+
+    @Nullable
+    @Override
+    public <V> V getUserData(UserDataKey<V> key) {
+        return null;
+    }
 }

core/descriptors/src/org/jetbrains/kotlin/descriptors/impl/PropertyDescriptorImpl.java

@@ -546,4 +546,10 @@ public class PropertyDescriptorImpl extends VariableDescriptorWithInitializerImp
                 .setCopyOverrides(copyOverrides)
                 .build();
     }
+
+    @Nullable
+    @Override
+    public <V> V getUserData(UserDataKey<V> key) {
+        return null;
+    }
 }

core/descriptors/src/org/jetbrains/kotlin/descriptors/impl/VariableDescriptorImpl.java

@@ -107,4 +107,10 @@ public abstract class VariableDescriptorImpl extends DeclarationDescriptorNonRoo
     public boolean isConst() {
         return false;
     }
+
+    @Nullable
+    @Override
+    public <V> V getUserData(UserDataKey<V> key) {
+        return null;
+    }
 }

core/deserialization/src/org/jetbrains/kotlin/serialization/deserialization/ContractDeserializer.kt

@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.serialization.deserialization
 
+import org.jetbrains.kotlin.descriptors.CallableDescriptor
 import org.jetbrains.kotlin.descriptors.FunctionDescriptor
 import org.jetbrains.kotlin.metadata.ProtoBuf
 import org.jetbrains.kotlin.metadata.deserialization.TypeTable
@@ -26,7 +27,7 @@ interface ContractDeserializer {
         ownerFunction: FunctionDescriptor,
         typeTable: TypeTable,
         typeDeserializer: TypeDeserializer
-    ): Pair<FunctionDescriptor.UserDataKey<*>, ContractProvider>?
+    ): Pair<CallableDescriptor.UserDataKey<*>, ContractProvider>?
 
     companion object {
         val DEFAULT = object : ContractDeserializer {
@@ -35,7 +36,7 @@ interface ContractDeserializer {
                 ownerFunction: FunctionDescriptor,
                 typeTable: TypeTable,
                 typeDeserializer: TypeDeserializer
-            ): Pair<FunctionDescriptor.UserDataKey<*>, Nothing>? = null
+            ): Pair<CallableDescriptor.UserDataKey<*>, Nothing>? = null
         }
     }
 }

core/deserialization/src/org/jetbrains/kotlin/serialization/deserialization/MemberDeserializer.kt

@@ -179,7 +179,7 @@ class MemberDeserializer(private val c: DeserializationContext) {
         unsubstitutedReturnType: KotlinType?,
         modality: Modality?,
         visibility: Visibility,
-        userDataMap: Map<out FunctionDescriptor.UserDataKey<*>, *>,
+        userDataMap: Map<out CallableDescriptor.UserDataKey<*>, *>,
         isSuspend: Boolean
     ) {
         initialize(
@@ -284,7 +284,7 @@ class MemberDeserializer(private val c: DeserializationContext) {
             local.typeDeserializer.type(proto.returnType(c.typeTable)),
             ProtoEnumFlags.modality(Flags.MODALITY.get(flags)),
             ProtoEnumFlags.visibility(Flags.VISIBILITY.get(flags)),
-            emptyMap<FunctionDescriptor.UserDataKey<*>, Any?>(),
+            emptyMap<CallableDescriptor.UserDataKey<*>, Any?>(),
             Flags.IS_SUSPEND.get(flags)
         )
         function.isOperator = Flags.IS_OPERATOR.get(flags)

core/deserialization/src/org/jetbrains/kotlin/serialization/deserialization/descriptors/DeserializedMemberDescriptor.kt

@@ -83,7 +83,7 @@ class DeserializedSimpleFunctionDescriptor(
         unsubstitutedReturnType: KotlinType?,
         modality: Modality?,
         visibility: Visibility,
-        userDataMap: Map<out FunctionDescriptor.UserDataKey<*>, *>,
+        userDataMap: Map<out CallableDescriptor.UserDataKey<*>, *>,
         isExperimentalCoroutineInReleaseEnvironment: DeserializedMemberDescriptor.CoroutinesCompatibilityMode
     ): SimpleFunctionDescriptorImpl {
         return super.initialize(