Upgrade to Kotlin 1.5.10 giving us:

- A terser build script
- stdlib implementations of `Char.isLetterOrDigit` and `Char.isDigit`
- `sealed interface`, which makes more sense for us here than `sealed class`

Author: kgbier

.gitignore

@@ -10,6 +10,7 @@ build
 # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
 
 # User-specific stuff
+local.properties
 .idea/**/workspace.xml
 .idea/**/tasks.xml
 .idea/**/usage.statistics.xml

build.gradle.kts

@@ -1,6 +1,6 @@
 plugins {
     // Apply the Kotlin JVM plugin to add support for Kotlin
-    kotlin("multiplatform") version "1.4.10"
+    kotlin("multiplatform") version "1.5.10"
 }
 
 repositories {
@@ -15,27 +15,16 @@ kotlin {
     }
 
     sourceSets {
-        val commonMain by sourceSets.getting { }
-        val commonTest by sourceSets.getting {
-            dependencies {
-                implementation(kotlin("test-common"))
-                implementation(kotlin("test-annotations-common"))
-            }
-        }
-        val jvmMain by sourceSets.getting {
-            dependencies {
-                implementation(kotlin("reflect"))
-            }
-        }
-        val jvmTest by sourceSets.getting {
+        val commonTest by getting {
             dependencies {
+                // This brings the dependency
+                // on JUnit 4 transitively
                 implementation(kotlin("test"))
-                implementation(kotlin("test-junit"))
             }
         }
-        val jsTest by sourceSets.getting {
+        val jvmMain by getting {
             dependencies {
-                implementation(kotlin("test-js"))
+                implementation(kotlin("reflect"))
             }
         }
     }