Split build into asan and without

Author: arik-so

.github/workflows/swift.yml

@@ -94,11 +94,9 @@ jobs:
             -   name: Verify generated output recency
                 run: |
                     git diff --exit-code out/ ':(exclude)out/VersionDescriptor.swift'
-            -   name: Build Swift bindings package
+            -   name: Build Swift bindings package without address sanitizer
                 run: |
                     cd ci/LDKSwift
-                    # should be /usr/lib/llvm-18/lib/clang/18/lib/linux/libclang_rt.asan-x86_64.a
-                    export LLVM_CLANG_ASAN_PATH="$(clang -print-resource-dir)/lib/linux/libclang_rt.asan-x86_64.a"
                     ../../swift-5.7.2-RELEASE-ubuntu22.04/usr/bin/swift build
                 env:
                     LDK_C_BINDINGS_BASE: ${{ github.workspace }}/ci/ldk-c-bindings
@@ -110,6 +108,15 @@ jobs:
                 env:
                     LDK_C_BINDINGS_BASE: ${{ github.workspace }}/ci/ldk-c-bindings
                     RUST_BACKTRACE: 1
+            -   name: Build Swift bindings package with address sanitizer
+                run: |
+                    cd ci/LDKSwift
+                    # should be /usr/lib/llvm-18/lib/clang/18/lib/linux/libclang_rt.asan-x86_64.a
+                    export LLVM_CLANG_ASAN_PATH="$(clang -print-resource-dir)/lib/linux/libclang_rt.asan-x86_64.a"
+                    ../../swift-5.7.2-RELEASE-ubuntu22.04/usr/bin/swift build
+                env:
+                    LDK_C_BINDINGS_BASE: ${{ github.workspace }}/ci/ldk-c-bindings
+                    RUST_BACKTRACE: 1
             -   name: Test Swift bindings package with address sanitizer
                 continue-on-error: true
                 run: |