Fix Wasm CI (#124)

* Fix Wasm CI.

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* fix

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Author: mbrandonw

.github/workflows/ci.yml

@@ -74,18 +74,29 @@ jobs:
       - name: Build for static-stdlib
         run: CONFIG=${{ matrix.config }} make build-for-static-stdlib
 
-  # NB: Downloading the toolchain gets rate-limited by GitHub
-  # wasm:
-  #   name: Wasm
-  #   runs-on: macos-14
-  #   steps:
-  #     - uses: actions/checkout@v4
-  #     - name: Select Xcode
-  #       run: sudo xcode-select -s /Applications/Xcode_15.4.app
-  #     - name: Select Swift version
-  #       run: echo 'wasm-DEVELOPMENT-SNAPSHOT-2024-07-08-a' > .swift-version
-  #     - name: Build
-  #       run: swift run carton bundle
+  wasm:
+    name: SwiftWasm
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        toolchain:
+          - wasm-5.9.2-RELEASE
+          - wasm-5.10.0-RELEASE 
+    steps:
+      - name: Cache toolchains
+        uses: actions/cache@v3
+        with:
+          path: ~/Library/Developer/Toolchains
+          key: ${{ matrix.toolchain }}
+      - uses: actions/checkout@v4
+      - uses: bytecodealliance/actions/wasmtime/setup@v1
+      - uses: swiftwasm/setup-swiftwasm@v1
+        with:
+          swift-version: ${{ matrix.toolchain }}
+      - name: Build tests
+        run: swift build --triple wasm32-unknown-wasi --build-tests -Xlinker -z -Xlinker stack-size=$((1024 * 1024))
+      - name: Run tests
+        run: wasmtime .build/debug/xctest-dynamic-overlayPackageTests.wasm
 
   windows:
     name: Windows