Merge pull request #1548 from ahoppen/skip-macro-expansion-test-no-background-indexing

Skip `testFreestandingMacroExpansion` if host toolchain does not support background indexing

Author: ahoppen

Tests/SourceKitLSPTests/ExecuteCommandTests.swift

@@ -140,6 +140,7 @@ final class ExecuteCommandTests: XCTestCase {
 
   func testFreestandingMacroExpansion() async throws {
     try await SkipUnless.canBuildMacroUsingSwiftSyntaxFromSourceKitLSPBuild()
+    try await SkipUnless.swiftPMSupportsExperimentalPrepareForIndexing()
 
     let options = SourceKitLSPOptions.testDefault(experimentalFeatures: [.showMacroExpansions])