fix: build broke from last PR but I didn't see it :(

kotlin-runtime/ftl-generator/src/main/kotlin/xyz/block/ftl/generator/ModuleGenerator.kt

@@ -155,7 +155,6 @@ class ModuleGenerator() {
       type.bool != null -> ClassName("kotlin", "Boolean")
       type.time != null -> ClassName("java.time", "OffsetDateTime")
       type.any != null -> ClassName("kotlin", "Any")
-      type.parameter != null -> TypeVariableName(type.parameter.name)
       type.array != null -> {
         val element = type.array?.element ?: throw IllegalArgumentException(
           "Missing element type in kotlin array generator"

kotlin-runtime/ftl-generator/src/test/kotlin/xyz/block/ftl/generator/ModuleGeneratorTest.kt

@@ -41,7 +41,7 @@ public class TestModule()
           name = "ParamTestData",
           typeParameters = listOf(TypeParameter(name = "T")),
           fields = listOf(
-            Field(name = "t", type = Type(parameter = TypeParameter(name = "T"))),
+            Field(name = "t", type = Type(dataRef = DataRef(name = "T"))),
           )
         )
       ),
@@ -87,7 +87,7 @@ public class TestModule()
               name = "parameterizedDataRef", type = Type(
                 dataRef = DataRef(
                   name = "ParamTestData",
-                  typeParameters = listOf(Type(parameter = TypeParameter(name = "T")))
+                  typeParameters = listOf(Type(dataRef = DataRef(name = "T")))
                 )
               )
             ),

kotlin-runtime/ftl-runtime/src/main/kotlin/xyz/block/ftl/schemaextractor/ExtractSchemaRule.kt

@@ -410,7 +410,7 @@ class SchemaExtractor(
   private fun KotlinType.toSchemaType(position: Position): Type {
     if (this.unwrap().constructor.isTypeParameterTypeConstructor()) {
       return Type(
-        parameter = TypeParameter(
+        dataRef = DataRef(
           name = this.constructor.declarationDescriptor?.name?.asString() ?: "T",
           pos = position,
         )

kotlin-runtime/ftl-runtime/src/test/kotlin/xyz/block/ftl/schemaextractor/ExtractSchemaRuleTest.kt

@@ -131,7 +131,7 @@ internal class ExtractSchemaRuleTest(private val env: KotlinCoreEnvironment) {
             fields = listOf(
               Field(
                 name = "t",
-                type = Type(parameter = TypeParameter(name = "T"))
+                type = Type(dataRef = DataRef(name = "T"))
               ),
               Field(
                 name = "name",

protos/xyz/block/ftl/v1/schema/schema.proto

@@ -171,7 +171,7 @@
   optional Position pos = 1;
 }
 
 message Type {
   oneof value {
     Int int = 1;
     Float float = 2;
@@ -184,8 +184,7 @@
     DataRef dataRef = 9;
     Unit unit = 10;
     Any any = 11;
-    TypeParameter parameter = 12;
-    Optional optional = 13;
+    Optional optional = 12;
   }
 }