Use useCaseSensitiveFileNames instead

Author: orta

src/compiler/sys.ts

@@ -1186,7 +1186,8 @@ namespace ts {
             let activeSession: import("inspector").Session | "stopping" | undefined;
             let profilePath = "./profile.cpuprofile";
 
-            const realpathSync = process.platform !== "win32" ? _fs.realpathSync.native : _fs.realpathSync;
+            const useCaseSensitiveFileNames = isFileSystemCaseSensitive();
+            const realpathSync = useCaseSensitiveFileNames ? _fs.realpathSync : (_fs.realpathSync.native ?? _fs.realpathSync);
 
             const Buffer: {
                 new (input: string, encoding?: string): any;
@@ -1198,7 +1199,6 @@ namespace ts {
             const isLinuxOrMacOs = process.platform === "linux" || process.platform === "darwin";
 
             const platform: string = _os.platform();
-            const useCaseSensitiveFileNames = isFileSystemCaseSensitive();
             const fsSupportsRecursiveFsWatch = isNode4OrLater && (process.platform === "win32" || process.platform === "darwin");
             const getCurrentDirectory = memoize(() => process.cwd());
             const { watchFile, watchDirectory } = createSystemWatchFunctions({