Don't set KOTLIN_BUNDLED in unit tests in AS42

idea/src/org/jetbrains/kotlin/idea/KotlinPluginMacros.kt.as42

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.idea
+
+import com.intellij.openapi.application.PathMacroContributor
+import org.jetbrains.kotlin.idea.util.application.isUnitTestMode
+import org.jetbrains.kotlin.utils.PathUtil
+
+/**
+ * Some actions have to be performed before loading and opening any project.
+ *
+ * E.g. path variables have to be registered in advance as modules could rely on some path variables.
+ */
+class KotlinPluginMacros : PathMacroContributor {
+    override fun registerPathMacros(macros: MutableMap<String, String>, legacyMacros: MutableMap<String, String>) {
+        if (!isUnitTestMode()) {
+            macros[KOTLIN_BUNDLED_PATH_VARIABLE] = PathUtil.kotlinPathsForIdeaPlugin.homePath.path
+        }
+    }
+
+    companion object {
+        const val KOTLIN_BUNDLED_PATH_VARIABLE = "KOTLIN_BUNDLED"
+    }
+
+}