KT-8530 Synthetic properties doesn't work with smart casts

#KT-8530 Fixed

core/descriptors/src/org/jetbrains/kotlin/resolve/scopes/AbstractScopeAdapter.kt

@@ -47,12 +47,12 @@ public abstract class AbstractScopeAdapter : JetScope {
         return workerScope.getProperties(name)
     }
 
-    override fun getSyntheticExtensionProperties(receiverType: JetType, name: Name): Collection<PropertyDescriptor> {
-        return workerScope.getSyntheticExtensionProperties(receiverType, name)
+    override fun getSyntheticExtensionProperties(receiverTypes: Collection<JetType>, name: Name): Collection<PropertyDescriptor> {
+        return workerScope.getSyntheticExtensionProperties(receiverTypes, name)
     }
 
-    override fun getSyntheticExtensionProperties(receiverType: JetType): Collection<PropertyDescriptor> {
-        return workerScope.getSyntheticExtensionProperties(receiverType)
+    override fun getSyntheticExtensionProperties(receiverTypes: Collection<JetType>): Collection<PropertyDescriptor> {
+        return workerScope.getSyntheticExtensionProperties(receiverTypes)
     }
 
     override fun getLocalVariable(name: Name): VariableDescriptor? {

core/descriptors/src/org/jetbrains/kotlin/resolve/scopes/ChainedScope.kt

@@ -65,11 +65,11 @@ public open class ChainedScope(
     override fun getFunctions(name: Name): Collection<FunctionDescriptor>
             = getFromAllScopes { it.getFunctions(name) }
 
-    override fun getSyntheticExtensionProperties(receiverType: JetType, name: Name): Collection<PropertyDescriptor>
-            = getFromAllScopes { it.getSyntheticExtensionProperties(receiverType, name) }
+    override fun getSyntheticExtensionProperties(receiverTypes: Collection<JetType>, name: Name): Collection<PropertyDescriptor>
+            = getFromAllScopes { it.getSyntheticExtensionProperties(receiverTypes, name) }
 
-    override fun getSyntheticExtensionProperties(receiverType: JetType): Collection<PropertyDescriptor>
-            = getFromAllScopes { it.getSyntheticExtensionProperties(receiverType) }
+    override fun getSyntheticExtensionProperties(receiverTypes: Collection<JetType>): Collection<PropertyDescriptor>
+            = getFromAllScopes { it.getSyntheticExtensionProperties(receiverTypes) }
 
     override fun getImplicitReceiversHierarchy(): List<ReceiverParameterDescriptor> {
         if (implicitReceiverHierarchy == null) {

core/descriptors/src/org/jetbrains/kotlin/resolve/scopes/FilteringScope.kt

@@ -37,9 +37,9 @@ public class FilteringScope(private val workerScope: JetScope, private val predi
 
     override fun getProperties(name: Name) = workerScope.getProperties(name).filter(predicate)
 
-    override fun getSyntheticExtensionProperties(receiverType: JetType, name: Name): Collection<PropertyDescriptor> = workerScope.getSyntheticExtensionProperties(receiverType, name).filter(predicate)
+    override fun getSyntheticExtensionProperties(receiverTypes: Collection<JetType>, name: Name): Collection<PropertyDescriptor> = workerScope.getSyntheticExtensionProperties(receiverTypes, name).filter(predicate)
 
-    override fun getSyntheticExtensionProperties(receiverType: JetType): Collection<PropertyDescriptor> = workerScope.getSyntheticExtensionProperties(receiverType).filter(predicate)
+    override fun getSyntheticExtensionProperties(receiverTypes: Collection<JetType>): Collection<PropertyDescriptor> = workerScope.getSyntheticExtensionProperties(receiverTypes).filter(predicate)
 
     override fun getLocalVariable(name: Name) = filterDescriptor(workerScope.getLocalVariable(name))
 

core/descriptors/src/org/jetbrains/kotlin/resolve/scopes/JetScope.kt

@@ -35,9 +35,9 @@ public trait JetScope {
 
     public fun getFunctions(name: Name): Collection<FunctionDescriptor>
 
-    public fun getSyntheticExtensionProperties(receiverType: JetType, name: Name): Collection<PropertyDescriptor>
+    public fun getSyntheticExtensionProperties(receiverTypes: Collection<JetType>, name: Name): Collection<PropertyDescriptor>
 
-    public fun getSyntheticExtensionProperties(receiverType: JetType): Collection<PropertyDescriptor>
+    public fun getSyntheticExtensionProperties(receiverTypes: Collection<JetType>): Collection<PropertyDescriptor>
 
     public fun getContainingDeclaration(): DeclarationDescriptor
 

core/descriptors/src/org/jetbrains/kotlin/resolve/scopes/JetScopeImpl.kt

@@ -32,9 +32,9 @@ public abstract class JetScopeImpl : JetScope {
 
     override fun getFunctions(name: Name): Collection<FunctionDescriptor> = setOf()
 
-    override fun getSyntheticExtensionProperties(receiverType: JetType, name: Name): Collection<PropertyDescriptor> = listOf()
+    override fun getSyntheticExtensionProperties(receiverTypes: Collection<JetType>, name: Name): Collection<PropertyDescriptor> = listOf()
 
-    override fun getSyntheticExtensionProperties(receiverType: JetType): Collection<PropertyDescriptor> = listOf()
+    override fun getSyntheticExtensionProperties(receiverTypes: Collection<JetType>): Collection<PropertyDescriptor> = listOf()
 
     override fun getDeclarationsByLabel(labelName: Name): Collection<DeclarationDescriptor> = listOf()
 

core/descriptors/src/org/jetbrains/kotlin/resolve/scopes/SubstitutingScope.kt

@@ -70,9 +70,9 @@ public class SubstitutingScope(private val workerScope: JetScope, private val su
 
     override fun getFunctions(name: Name) = substitute(workerScope.getFunctions(name))
 
-    override fun getSyntheticExtensionProperties(receiverType: JetType, name: Name): Collection<PropertyDescriptor> = substitute(workerScope.getSyntheticExtensionProperties(receiverType, name))
+    override fun getSyntheticExtensionProperties(receiverTypes: Collection<JetType>, name: Name): Collection<PropertyDescriptor> = substitute(workerScope.getSyntheticExtensionProperties(receiverTypes, name))
 
-    override fun getSyntheticExtensionProperties(receiverType: JetType): Collection<PropertyDescriptor> = substitute(workerScope.getSyntheticExtensionProperties(receiverType))
+    override fun getSyntheticExtensionProperties(receiverTypes: Collection<JetType>): Collection<PropertyDescriptor> = substitute(workerScope.getSyntheticExtensionProperties(receiverTypes))
 
     override fun getPackage(name: Name) = workerScope.getPackage(name)
 

core/descriptors/src/org/jetbrains/kotlin/types/ErrorUtils.java

@@ -94,14 +94,14 @@ public class ErrorUtils {
         @NotNull
         @Override
         public Collection<PropertyDescriptor> getSyntheticExtensionProperties(
-                @NotNull JetType receiverType, @NotNull Name name
+                @NotNull Collection<? extends JetType> receiverTypes, @NotNull Name name
         ) {
             return ERROR_PROPERTY_GROUP;
         }
 
         @NotNull
         @Override
-        public Collection<PropertyDescriptor> getSyntheticExtensionProperties(@NotNull JetType receiverType) {
+        public Collection<PropertyDescriptor> getSyntheticExtensionProperties(@NotNull Collection<? extends JetType> receiverTypes) {
             return ERROR_PROPERTY_GROUP;
         }
 
@@ -210,14 +210,14 @@ public class ErrorUtils {
         @NotNull
         @Override
         public Collection<PropertyDescriptor> getSyntheticExtensionProperties(
-                @NotNull JetType receiverType, @NotNull Name name
+                @NotNull Collection<? extends JetType> receiverTypes, @NotNull Name name
         ) {
             throw new IllegalStateException();
         }
 
         @NotNull
         @Override
-        public Collection<PropertyDescriptor> getSyntheticExtensionProperties(@NotNull JetType receiverType) {
+        public Collection<PropertyDescriptor> getSyntheticExtensionProperties(@NotNull Collection<? extends JetType> receiverTypes) {
             throw new IllegalStateException();
         }