Add dependency: ir.tree -> intellij

AnnotationGenerator looks into PsiElement

compiler/ir/ir.tree/build.gradle.kts

@@ -7,6 +7,7 @@ plugins {
 jvmTarget = "1.6"
 
 dependencies {
+    compile(intellijDep())
     compile(project(":compiler:util"))
     compile(project(":compiler:frontend"))
     compileOnly(intellijCoreDep()) { includeJars("intellij-core") }