Filter out typealiases invisible due to API_VERSION < their SinceKotlin version, when determining excluded imports.

compiler/frontend/src/org/jetbrains/kotlin/resolve/lazy/DefaultImportProvider.kt

@@ -17,6 +17,7 @@
 package org.jetbrains.kotlin.resolve.lazy
 
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
+import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.descriptors.TypeAliasDescriptor
 import org.jetbrains.kotlin.name.FqName
@@ -24,6 +25,7 @@ import org.jetbrains.kotlin.name.isChildOf
 import org.jetbrains.kotlin.name.isSubpackageOf
 import org.jetbrains.kotlin.resolve.ImportPath
 import org.jetbrains.kotlin.resolve.TargetPlatform
+import org.jetbrains.kotlin.resolve.checkSinceKotlinVersionAccessibility
 import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
 import org.jetbrains.kotlin.resolve.scopes.DescriptorKindFilter
 import org.jetbrains.kotlin.storage.StorageManager
@@ -33,18 +35,22 @@ import org.jetbrains.kotlin.utils.addToStdlib.check
 class DefaultImportProvider(
         storageManager: StorageManager,
         moduleDescriptor: ModuleDescriptor,
-        private val targetPlatform: TargetPlatform
+        private val targetPlatform: TargetPlatform,
+        private val languageVersionSettings: LanguageVersionSettings
 ) {
     val defaultImports: List<ImportPath>
         get() = targetPlatform.defaultImports
 
     val excludedImports: List<FqName> by storageManager.createLazyValue {
         val packagesWithAliases = listOf(KotlinBuiltIns.BUILT_INS_PACKAGE_FQ_NAME, KotlinBuiltIns.TEXT_PACKAGE_FQ_NAME)
-        val builtinTypeAliases = moduleDescriptor.allDependentModules.flatMap { dependentModule ->
-            packagesWithAliases.map(dependentModule::getPackage).flatMap {
-                it.memberScope.getContributedDescriptors(DescriptorKindFilter.TYPE_ALIASES).filterIsInstance<TypeAliasDescriptor>()
-            }
-        }
+        val builtinTypeAliases = moduleDescriptor.allDependentModules
+                .flatMap { dependentModule ->
+                    packagesWithAliases.map(dependentModule::getPackage).flatMap {
+                        it.memberScope.getContributedDescriptors(DescriptorKindFilter.TYPE_ALIASES).filterIsInstance<TypeAliasDescriptor>()
+                    }
+                }
+                .filter { it.checkSinceKotlinVersionAccessibility(languageVersionSettings) }
+
 
         val nonKotlinDefaultImportedPackages =
                 defaultImports

compiler/testData/diagnostics/testsWithStdLib/typealias/exceptionTypeAliases.kt

@@ -0,0 +1,3 @@
+// FILE: test.kt
+val fooException = Exception("foo")
+val barException = kotlin.Exception("bar")

compiler/testData/diagnostics/testsWithStdLib/typealias/exceptionTypeAliases.txt

@@ -0,0 +1,4 @@
+package
+
+public val barException: java.lang.Exception
+public val fooException: java.lang.Exception

compiler/testData/diagnostics/testsWithStdLib/typealias/exceptionTypeAliasesInvisibleWithApiVersion1_0.kt

@@ -0,0 +1,5 @@
+// !LANGUAGE: +TypeAliases
+// !API_VERSION: 1.0
+// FILE: test.kt
+val fooException = Exception("foo")
+val barException = kotlin.<!UNRESOLVED_REFERENCE!>Exception<!>("bar")

compiler/testData/diagnostics/testsWithStdLib/typealias/exceptionTypeAliasesInvisibleWithApiVersion1_0.txt

@@ -0,0 +1,4 @@
+package
+
+public val barException: [ERROR : Type for kotlin.Exception("bar")]
+public val fooException: java.lang.Exception

compiler/testData/diagnostics/testsWithStdLib/typealias/exceptionTypeAliasesInvisibleWithoutFeature.kt

@@ -0,0 +1,4 @@
+// !LANGUAGE: -TypeAliases
+// FILE: test.kt
+val fooException = Exception("foo")
+val barException = kotlin.<!UNRESOLVED_REFERENCE!>Exception<!>("bar")

compiler/testData/diagnostics/testsWithStdLib/typealias/exceptionTypeAliasesInvisibleWithoutFeature.txt

@@ -0,0 +1,4 @@
+package
+
+public val barException: [ERROR : Type for kotlin.Exception("bar")]
+public val fooException: java.lang.Exception

compiler/tests/org/jetbrains/kotlin/checkers/DiagnosticsTestWithStdLibGenerated.java

@@ -1270,6 +1270,24 @@ public class DiagnosticsTestWithStdLibGenerated extends AbstractDiagnosticsTestW
             KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/testData/diagnostics/testsWithStdLib/typealias"), Pattern.compile("^(.+)\\.kt$"), true);
         }
 
+        @TestMetadata("exceptionTypeAliases.kt")
+        public void testExceptionTypeAliases() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/diagnostics/testsWithStdLib/typealias/exceptionTypeAliases.kt");
+            doTest(fileName);
+        }
+
+        @TestMetadata("exceptionTypeAliasesInvisibleWithApiVersion1_0.kt")
+        public void testExceptionTypeAliasesInvisibleWithApiVersion1_0() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/diagnostics/testsWithStdLib/typealias/exceptionTypeAliasesInvisibleWithApiVersion1_0.kt");
+            doTest(fileName);
+        }
+
+        @TestMetadata("exceptionTypeAliasesInvisibleWithoutFeature.kt")
+        public void testExceptionTypeAliasesInvisibleWithoutFeature() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/diagnostics/testsWithStdLib/typealias/exceptionTypeAliasesInvisibleWithoutFeature.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("typeAliasSamAdapterConstructors.kt")
         public void testTypeAliasSamAdapterConstructors() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/diagnostics/testsWithStdLib/typealias/typeAliasSamAdapterConstructors.kt");