Fix block marker particle.

Closes #459
Closes #461

Author: Earthcomputer

src/main/java/net/earthcomputer/multiconnect/packets/CommonTypes.java

@@ -417,7 +417,7 @@ public static abstract class Particle_Latest implements Particle {
         @Registry(Registries.PARTICLE_TYPE)
         public int particleId;
 
-        @Polymorphic(stringValue = {"block", "falling_dust", "multiconnect:block_dust"})
+        @Polymorphic(stringValue = {"block", "falling_dust", "block_marker", "multiconnect:block_dust"})
         @MessageVariant(minVersion = Protocols.V1_13)
         public static class BlockState extends Particle_Latest implements Particle.BlockState {
             @Registry(Registries.BLOCK_STATE)

translatorCompiler/src/main/kotlin/net/earthcomputer/multiconnect/compiler/gen/Common.kt

@@ -224,7 +224,13 @@ internal fun ProtocolCompiler.generatePolymorphicInstantiationGraph(
                         ThrowStmtOp,
                         McNode(
                             NewOp("java.lang.IllegalArgumentException", listOf(McType.STRING)),
-                            createCstNode("Could not select polymorphic child of \"${splitPackageClass(message.className).second}\"")
+                            McNode(BinaryExpressionOp("+", McType.STRING, McType.STRING),
+                                createCstNode("Could not select polymorphic child of \"${splitPackageClass(message.className).second}\" for field value \""),
+                                McNode(BinaryExpressionOp("+", type.realType, McType.STRING),
+                                    loadTypeField,
+                                    createCstNode("\"")
+                                )
+                            )
                         )
                     )
                 }