Add explicit dependencies to nullable annotations

libraries/reflect/api/build.gradle

@@ -20,6 +20,7 @@ dependencies {
     compileOnly project(':core:deserialization')
     compileOnly project(':core:descriptors.runtime')
     compileOnly project(':core:util.runtime')
+    compileOnly "org.jetbrains:annotations:13.0"
 }
 
 compileJava9Sources(

libraries/reflect/build.gradle.kts

@@ -62,7 +62,9 @@ dependencies {
     shadows(project(":core:descriptors.runtime"))
     shadows(project(":core:util.runtime"))
     shadows("javax.inject:javax.inject:1")
-    shadows(project(":custom-dependencies:protobuf-lite", configuration = "default"))
+    shadows(protobufLite())
+
+    compileOnly("org.jetbrains:annotations:13.0")
 }
 
 class KotlinModuleShadowTransformer(private val logger: Logger) : Transformer {