Add IDEA action to show raw FIR of currently opened file

This action works correctly with fir.enabled=true in Gradle properties

compiler/fir/tree/build.gradle.kts

@@ -10,12 +10,9 @@ plugins {
 
 jvmTarget = "1.6"
 
-val generatorClasspath by configurations.creating
-
 dependencies {
     compile(project(":core:descriptors"))
     compile(project(":compiler:fir:cones"))
-    generatorClasspath(project("visitors-generator"))
     // Necessary only to store bound PsiElement inside FirElement
     compileOnly(intellijCoreDep()) { includeJars("intellij-core", "annotations") }
 }
@@ -28,6 +25,12 @@ sourceSets {
     "test" {}
 }
 
+val generatorClasspath by configurations.creating
+
+dependencies {
+    generatorClasspath(project("visitors-generator"))
+}
+
 val generateVisitors by tasks.creating(JavaExec::class) {
     val generationRoot = "$projectDir/src/org/jetbrains/kotlin/fir/"
     val output = "$projectDir/visitors"