Update tutorial_buffer.wasm and expected data markers (#5568)

Follow-up from #5567

Author: sffc

components/icu/src/datagen.rs

@@ -89,13 +89,23 @@ pub fn markers_for_bin(path: &Path) -> Result<HashSet<DataMarkerInfo>, DataError
 
 #[test]
 fn test_markers_for_bin() {
+    let hashset =
+        markers_for_bin_inner(include_bytes!("../tests/data/tutorial_buffer.wasm")).unwrap();
+    let mut sorted = hashset.into_iter().collect::<Vec<_>>();
+    sorted.sort();
     assert_eq!(
-        markers_for_bin_inner(include_bytes!("../tests/data/tutorial_buffer.wasm")),
-        Ok(HashSet::from_iter([
-            // TODO: This should include datetime markers. Why not?
+        sorted,
+        &[
+            crate::datetime::provider::neo::GluePatternV1Marker::INFO,
+            crate::datetime::provider::neo::GregorianDateNeoSkeletonPatternsV1Marker::INFO,
+            crate::datetime::provider::neo::TimeNeoSkeletonPatternsV1Marker::INFO,
+            crate::datetime::provider::neo::DayPeriodNamesV1Marker::INFO,
+            crate::datetime::provider::neo::GregorianMonthNamesV1Marker::INFO,
+            crate::datetime::provider::neo::GregorianYearNamesV1Marker::INFO,
+            crate::datetime::provider::neo::WeekdayNamesV1Marker::INFO,
             crate::calendar::provider::WeekDataV1Marker::INFO,
+            crate::calendar::provider::WeekDataV2Marker::INFO,
             crate::decimal::provider::DecimalSymbolsV1Marker::INFO,
-            crate::plurals::provider::OrdinalV1Marker::INFO,
-        ]))
+        ]
     );
 }

components/icu/tests/data/.gitignore

@@ -0,0 +1 @@
+tutorial_buffer.wat

components/icu/tests/data/gen.sh

@@ -1,7 +1,9 @@
 #!/bin/bash
 
+set -e
+
 pushd $(dirname "$0")/../../../../tutorials/rust/buffer
-cargo +nightly build --target wasm32-unknown-unknown --release -Z build-std=std,panic_abort -Z build-std-features=panic_immediate_abort
+make bin/tutorial_buffer.wasm
 popd
-cp $(dirname "$0")/../../../../tutorials/rust/buffer/target/wasm32-unknown-unknown/release/tutorial_buffer.wasm $(dirname "$0")
-    
+cp $(dirname "$0")/../../../../tutorials/rust/buffer/bin/tutorial_buffer.wasm $(dirname "$0")
+wasm2wat tutorial_buffer.wasm -o tutorial_buffer.wat

components/icu/tests/data/tutorial_buffer.wasm

@@ -4,17 +4,29 @@
 
 export CARGO_TARGET_DIR ?= target
 
-all: buffer_data.postcard
+PINNED_CI_NIGHTLY = "nightly-2024-07-23"
+
+all: buffer_data.postcard bin/tutorial_buffer.wasm
 
 ../bin/icu4x-datagen:
 	echo "Target dir: $(CARGO_TARGET_DIR)"
-	cargo install --path ../../provider/icu4x-datagen --root ..
+	cargo install --path ../../../provider/icu4x-datagen --root ..
 
 bin/tutorial_buffer:
 	echo "Target dir: $(CARGO_TARGET_DIR)"
 	cargo build --release
 	mkdir -p bin
 	cp -p "$(CARGO_TARGET_DIR)"/release/tutorial_buffer bin/tutorial_buffer
+	ls -l bin/
+
+bin/tutorial_buffer.wasm:
+	echo "Target dir: $(CARGO_TARGET_DIR)"
+	rustup toolchain install ${PINNED_CI_NIGHTLY}
+	rustup target add wasm32-wasip1 --toolchain ${PINNED_CI_NIGHTLY}
+	cargo +${PINNED_CI_NIGHTLY} build --target wasm32-wasip1 --release
+	mkdir -p bin
+	cp -p "$(CARGO_TARGET_DIR)"/wasm32-wasip1/release/tutorial_buffer.wasm bin/
+	ls -l bin/
 
 buffer_data.postcard: ../bin/icu4x-datagen bin/tutorial_buffer
 	../bin/icu4x-datagen \