Revert "Adjustments for SE-0118"

This reverts commit 97a5e22.

Parent commit in swift was reverted in PR #3583

Author: gottesmm

Sources/Basic/Path.swift

@@ -153,7 +153,7 @@ public struct AbsolutePath {
     /// to be a valid path component (i.e., it cannot be empty, contain a path
     /// separator, or be a pseudo-path like '.' or '..').
     public func appending(components names: String...) -> AbsolutePath {
-        return names.reduce(self, { path, name in
+        return names.reduce(self, combine: { path, name in
                 path.appending(component: name)
             })
     }

Tests/Basic/FileSystemTests.swift

@@ -45,9 +45,9 @@ class FileSystemTests: XCTestCase {
             _ = try fs.getDirectoryContents("/does-not-exist")
         }
         let thisDirectoryContents = try! fs.getDirectoryContents(AbsolutePath(#file).parentDirectory)
-        XCTAssertTrue(!thisDirectoryContents.contains(where: { $0 == "." }))
-        XCTAssertTrue(!thisDirectoryContents.contains(where: { $0 == ".." }))
-        XCTAssertTrue(thisDirectoryContents.contains(where: { $0 == #file.basename }))
+        XCTAssertTrue(!thisDirectoryContents.contains({ $0 == "." }))
+        XCTAssertTrue(!thisDirectoryContents.contains({ $0 == ".." }))
+        XCTAssertTrue(thisDirectoryContents.contains({ $0 == #file.basename }))
     }
 
     func testLocalCreateDirectory() throws {