Fix CCE when typealias is used in a class reference ('TA::class')

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

@@ -355,7 +355,7 @@ class TypeResolver(
                 type(resolveTypeForTypeParameter(c, annotations, descriptor, qualifierPart.expression, qualifierPart.typeArguments))
             }
             is ClassDescriptor -> resolveTypeForClass(c, annotations, descriptor, element, qualifierResolutionResult)
-            is TypeAliasDescriptor -> resolveTypeForTypeAlias(c, annotations, descriptor, element as KtUserType, qualifierResolutionResult)
+            is TypeAliasDescriptor -> resolveTypeForTypeAlias(c, annotations, descriptor, element, qualifierResolutionResult)
             else -> error("Unexpected classifier type: ${descriptor.javaClass}")
         }
     }
@@ -434,7 +434,7 @@ class TypeResolver(
             c: TypeResolutionContext,
             annotations: Annotations,
             descriptor: TypeAliasDescriptor,
-            type: KtUserType,
+            type: KtElement,
             qualifierResolutionResult: QualifiedExpressionResolver.TypeQualifierResolutionResult
     ): PossiblyBareType {
         val typeConstructor = descriptor.typeConstructor
@@ -487,7 +487,7 @@ class TypeResolver(
 
     private class TracingTypeAliasExpansionReportStrategy(
             val trace: BindingTrace,
-            val type: KtUserType?,
+            val type: KtElement?,
             val typeArgumentsOrTypeName: KtElement?,
             val typeAliasDescriptor: TypeAliasDescriptor,
             typeParameters: List<TypeParameterDescriptor>,

compiler/testData/diagnostics/tests/typealias/classReference.kt

@@ -0,0 +1,3 @@
+typealias S = String
+
+val s = S::class

compiler/testData/diagnostics/tests/typealias/classReference.txt

@@ -0,0 +1,4 @@
+package
+
+public typealias S = kotlin.String
+public val s: kotlin.reflect.KClass<S /* = kotlin.String */>

compiler/testData/diagnostics/tests/typealias/methodReference.kt

@@ -0,0 +1,7 @@
+class C {
+    fun foo() {}
+}
+
+typealias CA = C
+
+val cf = CA::foo

compiler/testData/diagnostics/tests/typealias/methodReference.txt

@@ -0,0 +1,12 @@
+package
+
+public typealias CA = C
+public val cf: kotlin.reflect.KFunction1<CA /* = C */, kotlin.Unit>
+
+public final class C {
+    public constructor C()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public final fun foo(): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

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

@@ -19647,6 +19647,12 @@ public class DiagnosticsTestGenerated extends AbstractDiagnosticsTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("classReference.kt")
+            public void testClassReference() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/typealias/classReference.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("conflictingProjections.kt")
             public void testConflictingProjections() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/typealias/conflictingProjections.kt");
@@ -19731,6 +19737,12 @@ public class DiagnosticsTestGenerated extends AbstractDiagnosticsTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("methodReference.kt")
+            public void testMethodReference() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/typealias/methodReference.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("nested.kt")
             public void testNested() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/typealias/nested.kt");