Unify `TypeAliasTag` API between metadata and KSP (#1152)

* Extract TypeAliasTag for reuse and simplify API in KSP

* Update TestProcessor implementation for new alias API

This is based on the implementation for metadata in Moshi, and possibly worth promoting as a util to KotlinPoet itself

* I am once again asking IntelliJ to actually rename imports

* Spotless

2 files changed, 2 insertions, 26 deletions

diff --git a/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/specs/kmTypes.kt b/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/specs/kmTypes.kt
index 59a49085..c556b830 100644
--- a/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/specs/kmTypes.kt
+++ b/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/specs/kmTypes.kt
@@ -30,6 +30,7 @@ import com.squareup.kotlinpoet.metadata.isNullable
 import com.squareup.kotlinpoet.metadata.isPrimary
 import com.squareup.kotlinpoet.metadata.isReified
 import com.squareup.kotlinpoet.metadata.isSuspend
+import com.squareup.kotlinpoet.tags.TypeAliasTag
 import kotlinx.metadata.KmClass
 import kotlinx.metadata.KmClassifier
 import kotlinx.metadata.KmClassifier.Class
@@ -158,7 +159,7 @@ internal fun KmType.toTypeName(
     // type in tags for reference.
     val abbreviatedTypeName = it.toTypeName(typeParamResolver)
     abbreviatedTypeName.copy(
-      tags = mapOf(TypeNameAliasTag::class to TypeNameAliasTag(finalType))
+      tags = mapOf(TypeAliasTag::class to TypeAliasTag(finalType))
     )
   } ?: finalType
 }
diff --git a/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/specs/tags.kt b/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/specs/tags.kt
deleted file mode 100644
index a2cbe0f3..00000000
--- a/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/specs/tags.kt
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2019 Square, Inc.
- *
- * 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
- *
- * https://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 com.squareup.kotlinpoet.metadata.specs
-
-import com.squareup.kotlinpoet.TypeName
-
-/**
- * This tag indicates that this [TypeName] represents a `typealias` type.
- *
- * @property [type] the underlying type for this alias.
- */
-public class TypeNameAliasTag(public val type: TypeName)