fix: support normalized array descriptors in java emitter

Author: edengilbertus

amber-pipeline/src/main/kotlin/dev/amber/pipeline/codegen/JavaEmitter.kt

@@ -1106,6 +1106,17 @@ class JavaEmitter {
         if (descriptor.startsWith("[")) descriptor.substring(1) else descriptor
 
     private fun newArrayExpression(descriptor: String, sizeArg: String, renameIndex: dev.amber.pipeline.mapping.MappingRenameIndex): String {
+        if (descriptor.endsWith("[]")) {
+            var componentType = descriptor
+            var dimensions = 0
+            while (componentType.endsWith("[]")) {
+                dimensions += 1
+                componentType = componentType.removeSuffix("[]")
+            }
+            val trailing = if (dimensions <= 1) "" else List(dimensions - 1) { "[]" }.joinToString("")
+            return "new $componentType[$sizeArg]$trailing"
+        }
+
         var dimensions = 0
         var component = descriptor
         while (component.startsWith("[")) {