Remove a few @preconcurrency imports

rdar://132378792 is fixed

Author: ahoppen

Sources/BuildSystemIntegration/BuildServerBuildSystem.swift

@@ -11,6 +11,7 @@
 //===----------------------------------------------------------------------===//
 
 import BuildServerProtocol
+import Foundation
 import LanguageServerProtocol
 import LanguageServerProtocolJSONRPC
 import SKLogging
@@ -26,13 +27,6 @@ import var TSCBasic.localFileSystem
 import func TSCBasic.lookupExecutablePath
 import func TSCBasic.resolveSymlinks
 
-#if canImport(Darwin)
-import Foundation
-#else
-// FIMXE: (async-workaround) @preconcurrency needed because Pipe is not marked as Sendable on Linux rdar://132378792
-@preconcurrency import Foundation
-#endif
-
 enum BuildServerTestError: Error {
   case executableNotFound(String)
 }

Sources/SKLogging/NonDarwinLogging.swift

@@ -15,8 +15,7 @@ import SwiftExtensions
 #if canImport(Darwin)
 import Foundation
 #else
-// FIMXE: (async-workaround) @preconcurrency needed because DateFormatter and stderr are not marked as Sendable on Linux
-// rdar://125578486, rdar://132378589
+// TODO: @preconcurrency needed because stderr is not sendable on Linux https://github.com/swiftlang/swift/issues/75601
 @preconcurrency import Foundation
 #endif
 

Sources/SKLogging/SetGlobalLogFileHandler.swift

@@ -15,8 +15,7 @@ import RegexBuilder
 #if canImport(Darwin)
 import Foundation
 #else
-// FIMXE: (async-workaround) @preconcurrency needed because DateFormatter and stderr are not marked as Sendable on Linux
-// rdar://125578486, rdar://132378589
+// TODO: @preconcurrency needed because stderr is not sendable on Linux https://github.com/swiftlang/swift/issues/75601
 @preconcurrency import Foundation
 #endif
 

Sources/SKTestSupport/TestJSONRPCConnection.swift

@@ -17,12 +17,7 @@ import SKSupport
 import SwiftExtensions
 import XCTest
 
-#if canImport(Darwin)
 import class Foundation.Pipe
-#else
-// FIMXE: (async-workaround) @preconcurrency needed because Pipe is not marked as Sendable on Linux rdar://132378792
-@preconcurrency import class Foundation.Pipe
-#endif
 
 package final class TestJSONRPCConnection: Sendable {
   package let clientToServer: Pipe = Pipe()

Sources/SourceKitLSP/Clang/ClangLanguageService.swift

@@ -11,6 +11,7 @@
 //===----------------------------------------------------------------------===//
 
 import BuildSystemIntegration
+import Foundation
 import LanguageServerProtocol
 import LanguageServerProtocolJSONRPC
 import SKLogging
@@ -22,21 +23,10 @@ import ToolchainRegistry
 
 import struct TSCBasic.AbsolutePath
 
-#if canImport(Darwin)
-import Foundation
-#else
-// FIMXE: (async-workaround) @preconcurrency needed because Pipe is not marked as Sendable on Linux
-@preconcurrency import Foundation
-#endif
-
 #if os(Windows)
 import WinSDK
 #endif
 
-#if !canImport(Darwin)
-extension Process: @unchecked Sendable {}
-#endif
-
 /// A thin wrapper over a connection to a clangd server providing build setting handling.
 ///
 /// In addition, it also intercepts notifications and replies from clangd in order to do things

Sources/sourcekit-lsp/SourceKitLSP.swift

@@ -15,6 +15,7 @@ import BuildSystemIntegration
 import Csourcekitd  // Not needed here, but fixes debugging...
 import Diagnose
 import Dispatch
+import Foundation
 import LanguageServerProtocol
 import LanguageServerProtocolJSONRPC
 import SKLogging
@@ -28,13 +29,6 @@ import struct TSCBasic.AbsolutePath
 import struct TSCBasic.RelativePath
 import var TSCBasic.localFileSystem
 
-#if canImport(Darwin)
-import Foundation
-#else
-// FIMXE: (async-workaround) @preconcurrency needed because FileHandle is not marked as Sendable on Linux rdar://132378985
-@preconcurrency import Foundation
-#endif
-
 extension AbsolutePath {
   public init?(argument: String) {
     let path: AbsolutePath?

Tests/BuildSystemIntegrationTests/BuildServerBuildSystemTests.swift

@@ -12,19 +12,13 @@
 
 import BuildServerProtocol
 import BuildSystemIntegration
+import Foundation
 import ISDBTestSupport
 import LanguageServerProtocol
 import SKTestSupport
 import TSCBasic
 import XCTest
 
-#if canImport(Darwin)
-import Foundation
-#else
-// FIMXE: (async-workaround) @preconcurrency needed because Pipe is not marked as Sendable on Linux rdar://132378792
-@preconcurrency import Foundation
-#endif
-
 /// The path to the INPUTS directory of shared test projects.
 private let skTestSupportInputsDirectory: URL = {
   #if os(macOS)

Tests/LanguageServerProtocolJSONRPCTests/ConnectionTests.swift

@@ -15,12 +15,7 @@ import LanguageServerProtocol
 import SKTestSupport
 import XCTest
 
-#if canImport(Darwin)
 import class Foundation.Pipe
-#else
-// FIMXE: (async-workaround) @preconcurrency needed because Pipe is not marked as Sendable on Linux rdar://132378792
-@preconcurrency import class Foundation.Pipe
-#endif
 
 #if os(Windows)
 import WinSDK