[Gradle] Add k.g.p-api and k.g.p.-annotations modules to binary compatibility validation

^KT-54029 Verification Pending

libraries/tools/binary-compatibility-validator/build.gradle

@@ -18,6 +18,8 @@ dependencies {
     testArtifacts project(':kotlin-gradle-plugin-idea')
     testArtifacts project(path: ":kotlin-gradle-plugin-idea-proto", configuration: "binaryValidationApiElements")
     testArtifacts project(':kotlin-tooling-core')
+    testArtifacts project(':kotlin-gradle-plugin-api')
+    testArtifacts project(':kotlin-gradle-plugin-annotations')
 
     testCompileOnly("org.ow2.asm:asm-tree:9.0") {
         because(

libraries/tools/binary-compatibility-validator/reference-public-api/kotlin-gradle-plugin-annotations.txt

@@ -0,0 +1,6 @@
+public abstract interface annotation class org/jetbrains/kotlin/gradle/ExperimentalKotlinGradlePluginApi : java/lang/annotation/Annotation {
+}
+
+public abstract interface annotation class org/jetbrains/kotlin/gradle/InternalKotlinGradlePluginApi : java/lang/annotation/Annotation {
+}
+

libraries/tools/binary-compatibility-validator/src/test/kotlin/org.jetbrains.kotlin.tools.tests/RuntimePublicAPITest.kt

@@ -5,7 +5,9 @@
 
 package org.jetbrains.kotlin.tools.tests
 
-import kotlinx.validation.api.*
+import kotlinx.validation.api.filterOutAnnotated
+import kotlinx.validation.api.filterOutNonPublic
+import kotlinx.validation.api.loadApiFromJvmClasses
 import org.junit.Rule
 import org.junit.Test
 import org.junit.rules.TestName
@@ -33,6 +35,20 @@ class RuntimePublicAPITest {
         snapshotAPIAndCompare("../../reflect/api/build/libs", "kotlin-reflect-api(?!-[-a-z]+)", nonPublicPackages = listOf("kotlin.reflect.jvm.internal"))
     }
 
+    @Test fun kotlinGradlePluginAnnotations() {
+        snapshotAPIAndCompare(
+            "../kotlin-gradle-plugin-annotations/build/libs", "kotlin-gradle-plugin-annotations(?!-[-a-z]+)",
+            nonPublicAnnotations = listOf("org/jetbrains/kotlin/gradle/InternalKotlinGradlePluginApi")
+        )
+    }
+
+    @Test fun kotlinGradlePluginApi() {
+        snapshotAPIAndCompare(
+            "../kotlin-gradle-plugin-api/build/libs", "kotlin-gradle-plugin-api(?!-[-a-z]+)",
+            nonPublicAnnotations = listOf("org/jetbrains/kotlin/gradle/InternalKotlinGradlePluginApi")
+        )
+    }
+
     @Test fun kotlinGradlePluginIdea() {
         snapshotAPIAndCompare(
             "../kotlin-gradle-plugin-idea/build/libs", "kotlin-gradle-plugin-idea(?!-[-a-z]+)",