Update Kotlin submodule to tag 'v1.2.31'

Takhion · Takhion · commit 99c95e0dae32 · 2018-04-01T14:34:53.000+02:00
diff --git a/consts.gradle.kts b/consts.gradle.kts
@@ -8,7 +8,7 @@ val superRootDir: File by extra
 val consts: Properties by extra(object : Properties() {
 
     val codeVersion by "1.0.0"
-    val kotlinVersion by "1.2.30"
+    val kotlinVersion by "1.2.31"
 
     val gitHubUser by "Takhion"
     val gitHubRepo by "kotlin-metadata__kotlin-compiler-lite"
diff --git a/kotlin b/kotlin
@@ -1 +1 @@
-Subproject commit f5d847963568751dd9b51b7558e635b2b45604b2
+Subproject commit 3f71d364d55f5274a27fca7035441b701291c86d
