[java] Use JavaRelease in CoreLanguageLevelProjectExtension

#IDEA-369013

GitOrigin-RevId: e7ac9bc8ed38be27b3355e357c36a1ccfab0203e

Author: BartvHelvert

features-impl/common/src/com/jetbrains/ls/api/features/impl/common/configuration/LSCommonConfiguration.kt

@@ -5,6 +5,7 @@ import com.jetbrains.ls.api.features.impl.common.codeStyle.commonCodeStylePlugin
 import com.jetbrains.ls.api.features.impl.common.completion.commonCompletionPlugin
 import com.jetbrains.ls.api.features.impl.common.coreIjPlugin
 import com.jetbrains.ls.api.features.impl.common.decompiler.LSDecompileCommandDescriptorProvider
+import com.jetbrains.ls.api.features.impl.common.psi.javaPsiPlugin
 import com.jetbrains.ls.api.features.impl.common.search.commonUsagesPlugin
 import com.jetbrains.ls.api.features.impl.common.workspace.LSExportWorkspaceCommandDescriptorProvider
 import com.jetbrains.ls.api.features.language.LSLanguageConfiguration
@@ -22,6 +23,7 @@ val LSCommonConfiguration: LSLanguageConfiguration = LSLanguageConfiguration(
         commonUsagesPlugin,
         lsApiPlugin,
         commonLsApiPlugin,
+        javaPsiPlugin
     ),
     languages = emptyList(),
 )

features-impl/common/src/com/jetbrains/ls/api/features/impl/common/psi/javaPsiPlugin.kt

@@ -0,0 +1,6 @@
+package com.jetbrains.ls.api.features.impl.common.psi
+
+import com.intellij.pom.java.JavaRelease
+import com.jetbrains.ls.api.features.utils.ijPluginByXml
+
+internal val javaPsiPlugin = ijPluginByXml("intellij.java.psi.xml", JavaRelease::class.java)