Respect receiver-dependent visibility when selecting smart-cast type

compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/smartcasts/smartCastUtil.kt

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2010-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.kotlin.resolve.calls.smartcasts
+
+import org.jetbrains.kotlin.resolve.scopes.receivers.ReceiverValue
+import org.jetbrains.kotlin.types.KotlinType
+
+fun getReceiverValueWithSmartCast(
+        receiverArgument: ReceiverValue?,
+        smartCastType: KotlinType?
+) = smartCastType?.let { SmartCastReceiverValue(it) } ?: receiverArgument
+
+private class SmartCastReceiverValue(private val type: KotlinType) : ReceiverValue {
+    override fun getType() = type
+}

compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/tower/TowerLevels.kt

@@ -19,6 +19,7 @@ package org.jetbrains.kotlin.resolve.calls.tower
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.incremental.components.LookupLocation
 import org.jetbrains.kotlin.name.Name
+import org.jetbrains.kotlin.resolve.calls.smartcasts.getReceiverValueWithSmartCast
 import org.jetbrains.kotlin.resolve.calls.util.FakeCallableDescriptorForObject
 import org.jetbrains.kotlin.resolve.descriptorUtil.HIDES_MEMBERS_NAME_LIST
 import org.jetbrains.kotlin.resolve.descriptorUtil.hasClassValueDescriptor
@@ -65,7 +66,8 @@ internal abstract class AbstractScopeTowerLevel(
             val shouldSkipVisibilityCheck = scopeTower.isDebuggerContext
             if (!shouldSkipVisibilityCheck) {
                 Visibilities.findInvisibleMember(
-                        dispatchReceiver, descriptor,
+                        getReceiverValueWithSmartCast(dispatchReceiver, dispatchReceiverSmartCastType),
+                        descriptor,
                         scopeTower.lexicalScope.ownerDescriptor
                 )?.let { diagnostics.add(VisibilityError(it)) }
             }