Fix event marshaller binding for input event streams.

This is another case of SDK code generation failing when the event's structure name and the structure member name are not identical.

.changes/next-release/bugfix-AWSSDKforJavav2-410cf46.json

@@ -0,0 +1,5 @@
+{
+    "category": "AWS SDK for Java v2", 
+    "type": "bugfix", 
+    "description": "Fix marshaller binding for input event streams when member name and shape name are not equal."
+}

codegen/src/main/java/software/amazon/awssdk/codegen/poet/client/AsyncClientClass.java

@@ -46,7 +46,6 @@
 import software.amazon.awssdk.codegen.emitters.GeneratorTaskParams;
 import software.amazon.awssdk.codegen.model.config.customization.UtilitiesMethod;
 import software.amazon.awssdk.codegen.model.intermediate.IntermediateModel;
-import software.amazon.awssdk.codegen.model.intermediate.MemberModel;
 import software.amazon.awssdk.codegen.model.intermediate.OperationModel;
 import software.amazon.awssdk.codegen.model.intermediate.ShapeModel;
 import software.amazon.awssdk.codegen.poet.PoetExtensions;
@@ -273,7 +272,7 @@ private CodeBlock createEventStreamTaggedUnionJsonMarshaller(ShapeModel eventStr
                                                             EventStreamTaggedUnionJsonMarshaller.class);
 
         List<String> eventNames = EventStreamUtils.getEventMembers(eventStreamShape)
-                                                  .map(MemberModel::getC2jName)
+                                                  .map(m -> m.getShape().getShapeName())
                                                   .collect(Collectors.toList());
 
         eventNames.forEach(event -> builder.add(".putMarshaller($T.class, new $T(protocolFactory))",

codegen/src/test/resources/software/amazon/awssdk/codegen/poet/client/test-async-client-class.java

@@ -60,7 +60,6 @@
 import software.amazon.awssdk.services.json.model.GetWithoutRequiredMembersRequest;
 import software.amazon.awssdk.services.json.model.GetWithoutRequiredMembersResponse;
 import software.amazon.awssdk.services.json.model.InputEvent;
-import software.amazon.awssdk.services.json.model.InputEventOne;
 import software.amazon.awssdk.services.json.model.InputEventStream;
 import software.amazon.awssdk.services.json.model.InputEventStreamTwo;
 import software.amazon.awssdk.services.json.model.InputEventTwo;
@@ -86,7 +85,6 @@
 import software.amazon.awssdk.services.json.transform.EventStreamOperationWithOnlyOutputRequestMarshaller;
 import software.amazon.awssdk.services.json.transform.GetWithoutRequiredMembersRequestMarshaller;
 import software.amazon.awssdk.services.json.transform.InputEventMarshaller;
-import software.amazon.awssdk.services.json.transform.InputEventOneMarshaller;
 import software.amazon.awssdk.services.json.transform.InputEventTwoMarshaller;
 import software.amazon.awssdk.services.json.transform.PaginatedOperationWithResultKeyRequestMarshaller;
 import software.amazon.awssdk.services.json.transform.PaginatedOperationWithoutResultKeyRequestMarshaller;
@@ -343,7 +341,7 @@ public CompletableFuture<EventStreamOperationWithOnlyInputResponse> eventStreamO
             HttpResponseHandler<AwsServiceException> errorResponseHandler = createErrorResponseHandler(protocolFactory,
                     operationMetadata);
             EventStreamTaggedUnionJsonMarshaller eventMarshaller = EventStreamTaggedUnionJsonMarshaller.builder()
-                    .putMarshaller(InputEventOne.class, new InputEventOneMarshaller(protocolFactory))
+                    .putMarshaller(InputEvent.class, new InputEventMarshaller(protocolFactory))
                     .putMarshaller(InputEventTwo.class, new InputEventTwoMarshaller(protocolFactory)).build();
             SdkPublisher<InputEventStreamTwo> eventPublisher = SdkPublisher.adapt(requestStream);
             Publisher<ByteBuffer> adapted = eventPublisher.map(event -> eventMarshaller.marshall(event)).map(