Build: get rid of internal API usages

Author: ForNeVeR

build.gradle.kts

@@ -1,5 +1,6 @@
 import org.jetbrains.intellij.platform.gradle.TestFrameworkType
 import org.jetbrains.intellij.platform.gradle.tasks.PrepareSandboxTask
+import org.jetbrains.intellij.platform.gradle.tasks.VerifyPluginTask
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 import java.security.MessageDigest
 import java.util.zip.ZipFile
@@ -99,6 +100,7 @@ intellijPlatform {
       "-mute", "ForbiddenPluginIdPrefix",
       "-mute", "TemplateWordInPluginId"
     )
+    failureLevel.add(VerifyPluginTask.FailureLevel.INTERNAL_API_USAGES)
   }
 }
 

src/main/kotlin/com/intellij/plugin/powershell/ide/debugger/PowerShellDebuggerVariableValue.kt

@@ -1,8 +1,7 @@
 package com.intellij.plugin.powershell.ide.debugger
 
+import com.intellij.icons.AllIcons
 import com.intellij.openapi.diagnostic.logger
-import com.intellij.ui.IconManager
-import com.intellij.ui.PlatformIcons
 import com.intellij.util.io.await
 import com.intellij.xdebugger.XDebugSession
 import com.intellij.xdebugger.XExpression
@@ -13,7 +12,6 @@ import org.eclipse.lsp4j.debug.SetVariableArguments
 import org.eclipse.lsp4j.debug.Variable
 import org.eclipse.lsp4j.debug.VariablesArguments
 import org.eclipse.lsp4j.debug.services.IDebugProtocolServer
-import javax.swing.Icon
 
 class PowerShellDebuggerVariableValue(val variable: Variable, val parentReference: Int?,
                                       val server: IDebugProtocolServer,
@@ -34,8 +32,7 @@ class PowerShellDebuggerVariableValue(val variable: Variable, val parentReferenc
   }
 
   override fun computePresentation(node: XValueNode, place: XValuePlace) {
-    val icon: Icon = IconManager.getInstance().getPlatformIcon(PlatformIcons.Variable)
-    node.setPresentation(icon, variable.type, variable.value, variable.variablesReference != 0)
+    node.setPresentation(AllIcons.Nodes.Variable, variable.type, variable.value, variable.variablesReference != 0)
   }
 
   override fun computeChildren(node: XCompositeNode) {