KTC-5768 Reorganize packaging of the Kotlin Toolchain plugin

- Extract tooling libraries into modules
- Extract plugin descriptor module instead of using core module as both the content and descriptor

(cherry picked from commit 2edb04e444b424febb1099decdb44daf8848d909)
IJ-MR-222180
(cherry picked from commit 44f2dfa84bde686959e0704e777f640886349d41)

GitOrigin-RevId: 1dfe5ce6ce2e9aedb93c1a7cc6affb232468624c

aether-dependency-resolver/plugin/plugin-content.yaml

@@ -4,6 +4,7 @@
   library: maven-resolver-provider
   files:
   - name: $MAVEN_REPOSITORY$/org/codehaus/plexus/plexus-interpolation/1/plexus-interpolation-1.jar
+  - name: $MAVEN_REPOSITORY$/org/apache/maven/maven-artifact/3/maven-artifact-3.jar
   - name: $MAVEN_REPOSITORY$/org/eclipse/sisu/org.eclipse.sisu.inject/0/org.eclipse.sisu.inject-0.jar
   reason: <- intellij.libraries.maven.resolver.provider
 - name: lib/intellij.libraries.plexus.utils.jar
@@ -15,11 +16,6 @@
 - name: lib/java-aetherDependencyResolver-plugin.jar
   modules:
   - name: intellij.java.aetherDependencyResolver.plugin
-- name: lib/maven-artifact.jar
-  library: maven-resolver-provider
-  files:
-  - name: $MAVEN_REPOSITORY$/org/apache/maven/maven-artifact/3/maven-artifact-3.jar
-  reason: <- intellij.libraries.maven.resolver.provider
 - name: lib/maven-builder-support.jar
   library: maven-resolver-provider
   files:
@@ -87,4 +83,4 @@
   reason: <- intellij.libraries.maven.resolver.provider
 - name: lib/modules/intellij.java.aetherDependencyResolver.jar
   contentModules:
-  - name: intellij.java.aetherDependencyResolver
+  - name: intellij.java.aetherDependencyResolver

platform/build-scripts/src/org/jetbrains/intellij/build/impl/LibraryFilePacking.kt

@@ -24,12 +24,23 @@ private val agentLibrariesNotForcedInSeparateJars = listOf(
   "code-prompt-agents"
 )
 
+private val mavenLibrariesNotForcedInSeparateJars = listOf(
+  "maven-artifact",
+  "maven-central-configuration",
+  "maven-plugin-xml-parser",
+)
+
+/**
+ * Libraries that have to stay standalone jar files: agents are attached by path at runtime, and `-rt` / `maven-` jars are loaded by
+ * external processes. Objenesis is deliberately absent - it is an ordinary library, and hoisting it out of the content module that wraps it
+ * left that module's jar empty, so every module depending on the wrapper failed to resolve the classes (IJPL-252372).
+ */
 @Internal
 fun isSeparateLibraryJar(fileName: String): Boolean {
   return fileName.endsWith("-rt.jar") ||
          fileName.startsWith("byte-buddy-") ||
          (fileName.contains("-agent") && agentLibrariesNotForcedInSeparateJars.none { fileName.contains(it) }) ||
-         fileName.startsWith("maven-")
+         (fileName.startsWith("maven-") && mavenLibrariesNotForcedInSeparateJars.none { fileName.contains(it) })
 }
 
 @Internal