[KMP] Implement ACTUAL_TYPE_ALIAS_TO_NOTHING/TO_NULLABLE_TYPE errors

^KT-60650 Done

compiler/testData/diagnostics/tests/multiplatform/typealias/actualTypealiasToNothing.fir.kt

@@ -0,0 +1,13 @@
+// MODULE: m1-common
+// FILE: common.kt
+
+<!INCOMPATIBLE_MATCHING{JVM}!>expect class E01<!>
+<!INCOMPATIBLE_MATCHING{JVM}!>expect class E02<!>
+
+// MODULE: m1-jvm()()(m1-common)
+// FILE: jvm.kt
+
+typealias MyNothing = Nothing
+
+<!ACTUAL_TYPE_ALIAS_TO_NOTHING!>actual typealias E01 = Nothing<!>
+<!ACTUAL_TYPE_ALIAS_NOT_TO_CLASS!>actual typealias E02 = MyNothing<!>

compiler/testData/diagnostics/tests/multiplatform/typealias/actualTypealiasToNothing.kt

@@ -0,0 +1,13 @@
+// MODULE: m1-common
+// FILE: common.kt
+
+expect class E01
+expect class E02
+
+// MODULE: m1-jvm()()(m1-common)
+// FILE: jvm.kt
+
+typealias MyNothing = Nothing
+
+<!ACTUAL_TYPE_ALIAS_TO_NOTHING!>actual typealias E01 = Nothing<!>
+<!ACTUAL_TYPE_ALIAS_NOT_TO_CLASS!>actual typealias E02 = MyNothing<!>

compiler/testData/diagnostics/tests/multiplatform/typealias/actualTypealiasToNullableType.kt

@@ -0,0 +1,14 @@
+// FIR_IDENTICAL
+// MODULE: m1-common
+// FILE: common.kt
+
+expect class E01
+expect class E02
+
+// MODULE: m1-jvm()()(m1-common)
+// FILE: jvm.kt
+
+typealias MyNullable = String?
+
+<!ACTUAL_TYPE_ALIAS_TO_NULLABLE_TYPE!>actual typealias E01 = String?<!>
+<!ACTUAL_TYPE_ALIAS_NOT_TO_CLASS!>actual typealias E02 = MyNullable<!>

compiler/testData/multiplatform/implTypeAlias/actualTypealiasToNothing/common.kt

@@ -0,0 +1,2 @@
+expect class E01
+expect class E02

compiler/testData/multiplatform/implTypeAlias/actualTypealiasToNothing/jvm.kt

@@ -0,0 +1,4 @@
+typealias MyNothing = Nothing
+
+actual typealias E01 = Nothing
+actual typealias E02 = MyNothing

compiler/testData/multiplatform/implTypeAlias/actualTypealiasToNothing/output.txt

@@ -0,0 +1,13 @@
+-- Common --
+Exit code: OK
+Output:
+
+-- JVM --
+Exit code: COMPILATION_ERROR
+Output:
+compiler/testData/multiplatform/implTypeAlias/actualTypealiasToNothing/jvm.kt:3:1: error: right-hand side of actual type alias cannot be of type kotlin.Nothing
+actual typealias E01 = Nothing
+^
+compiler/testData/multiplatform/implTypeAlias/actualTypealiasToNothing/jvm.kt:4:1: error: right-hand side of actual type alias should be a class, not another type alias
+actual typealias E02 = MyNothing
+^

compiler/testData/multiplatform/implTypeAlias/actualTypealiasToNullableType/common.kt

@@ -0,0 +1,2 @@
+expect class E01
+expect class E02

compiler/testData/multiplatform/implTypeAlias/actualTypealiasToNullableType/jvm.kt

@@ -0,0 +1,4 @@
+typealias MyNullable = String?
+
+actual typealias E01 = String?
+actual typealias E02 = MyNullable

compiler/testData/multiplatform/implTypeAlias/actualTypealiasToNullableType/output.txt

@@ -0,0 +1,13 @@
+-- Common --
+Exit code: OK
+Output:
+
+-- JVM --
+Exit code: COMPILATION_ERROR
+Output:
+compiler/testData/multiplatform/implTypeAlias/actualTypealiasToNullableType/jvm.kt:3:1: error: right-hand side of actual type alias cannot be a nullable type
+actual typealias E01 = String?
+^
+compiler/testData/multiplatform/implTypeAlias/actualTypealiasToNullableType/jvm.kt:4:1: error: right-hand side of actual type alias should be a class, not another type alias
+actual typealias E02 = MyNullable
+^