fix(txe): align aztec_avm_returndataSize registry type with Noir u32 (#24480)

It was set to Field but was u32. I also adjusted some slightly outdated
comments.

Author: nventuro

yarn-project/txe/src/bin/oracle_test_server.ts

@@ -6,7 +6,7 @@ import { createOracleTestRpcServer } from '../oracle/test-resolver/index.js';
 
 /**
  * Starts an HTTP RPC server that resolves oracle foreign calls using auto-synthesized fixture scenarios. Used by
- * `nargo test --oracle-resolver` to run `#[auto_serialization_test]` serialization tests against a dedicated resolver.
+ * `nargo test --oracle-resolver` to run `#[generate_oracle_tests]` serialization tests against a dedicated resolver.
  * Logs fixture coverage on shutdown.
  */
 async function main() {

yarn-project/txe/src/oracle/interfaces.ts

@@ -43,7 +43,7 @@ export interface IAvmExecutionOracle {
   getContractInstanceClassId(address: AztecAddress): Promise<{ member: Fr; exists: boolean }>;
   getContractInstanceInitializationHash(address: AztecAddress): Promise<{ member: Fr; exists: boolean }>;
   getContractInstanceImmutablesHash(address: AztecAddress): Promise<{ member: Fr; exists: boolean }>;
-  returndataSize(): Promise<Fr>;
+  returndataSize(): Promise<number>;
   returndataCopy(rdOffset: number, copySize: number): Promise<Fr[]>;
   call(l2Gas: number, daGas: number, address: AztecAddress, argsLength: number, args: Fr[]): Promise<void>;
   staticCall(l2Gas: number, daGas: number, address: AztecAddress, argsLength: number, args: Fr[]): Promise<void>;

yarn-project/txe/src/oracle/test-resolver/default_fixtures.ts

@@ -27,7 +27,7 @@ import type { OracleTestScenario } from './resolver.js';
 /**
  * Synthesizes fixture scenarios for every oracle in the registry whose parameters and return are built from scalars,
  * arrays/bounded vecs of them, or `Option`s of them. The matching Noir serialization tests are auto-generated by
- * `#[auto_serialization_test]` from the same seed/scenario convention.
+ * `#[generate_oracle_tests]` from the same seed/scenario convention.
  */
 export function synthesizeDefaultFixtures(
   registry: Record<string, OracleRegistryEntry>,

yarn-project/txe/src/oracle/test-resolver/resolver.ts

@@ -53,7 +53,7 @@ export class OracleTestResolver {
 
   /**
    * Builds a resolver whose fixtures are the default scenarios synthesized from the registry's type mappings. The
-   * matching Noir serialization tests are auto-generated by `#[auto_serialization_test]` from the same convention.
+   * matching Noir serialization tests are auto-generated by `#[generate_oracle_tests]` from the same convention.
    */
   static fromRegistry(registry: Record<string, OracleRegistryEntry>, logger?: Logger): OracleTestResolver {
     return new OracleTestResolver(registry, synthesizeDefaultFixtures(registry), logger);

yarn-project/txe/src/oracle/txe_oracle_public_context.ts

@@ -153,7 +153,7 @@ export class TXEOraclePublicContext implements IAvmExecutionOracle {
     return { member: accessor(instance), exists: true };
   }
 
-  returndataSize(): Promise<Fr> {
+  returndataSize(): Promise<number> {
     throw new Error(
       'Contract calls are forbidden inside a `TestEnvironment::public_context`, use `public_call` instead',
     );

yarn-project/txe/src/oracle/txe_oracle_registry.ts

@@ -414,7 +414,7 @@ export const TXE_ORACLE_REGISTRY = {
     params: [{ name: 'message', type: ARRAY(FIELD) }],
   }),
 
-  aztec_avm_returndataSize: makeEntry({ returnType: FIELD }),
+  aztec_avm_returndataSize: makeEntry({ returnType: U32 }),
 
   aztec_avm_returndataCopy: makeEntry({
     params: [

yarn-project/txe/src/oracle/txe_oracle_version.ts

@@ -14,4 +14,4 @@ export const TXE_ORACLE_VERSION_MINOR = 2;
  *   - TXE_ORACLE_VERSION_MAJOR (and reset MINOR to 0) for breaking changes, or
  *   - TXE_ORACLE_VERSION_MINOR for additive changes (new oracle method added).
  */
-export const TXE_ORACLE_INTERFACE_HASH = '118698345ea9d368ca82ea574a051e72f4df0b85454539ade14838a934976b62';
+export const TXE_ORACLE_INTERFACE_HASH = 'f6694961673ada551f57f5c09fa04cd566b175e63b7b965343bd4cf02b3cbdf6';