Fix native build (#1636)

Author: bioball

pkl-core/src/main/java/org/pkl/core/stdlib/evaluatorsettings/EvaluatorSettingsNodes.java

@@ -43,6 +43,7 @@ private PathResolver getPathResolver(boolean forWindows) {
       return forWindows ? PathResolvers.forWindows() : PathResolvers.forPosix();
     }
 
+    @TruffleBoundary
     @Specialization
     protected String eval(VmTyped ignored, String uriStr, String path, boolean forWindows) {
       var uri = toUri(uriStr);

pkl-core/src/main/java/org/pkl/core/util/PathResolver.java

@@ -15,6 +15,7 @@
  */
 package org.pkl.core.util;
 
+import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
 import java.net.URI;
 import java.util.ArrayList;
 import java.util.regex.Pattern;
@@ -82,13 +83,14 @@ protected String normalize(String path) {
   }
 
   static final class WindowsPathResolver extends PathResolver {
+    @TruffleBoundary
     @Override
     protected String uriToPath(URI uri) {
       var host = uri.getHost();
       var path = uri.getPath();
       if (host != null) {
         // UNC path: \\server\share\path
-        return "\\\\%s%s".formatted(host, path.replace('/', '\\'));
+        return "\\\\" + host + path.replace('/', '\\');
       }
       var ret = path.matches("/[A-Z]:/.*") ? path.substring(1) : path;
       return ret.replace('/', '\\');
@@ -164,6 +166,7 @@ protected String normalize(String path) {
   }
 
   static final class PosixPathResolver extends PathResolver {
+    @TruffleBoundary
     @Override
     protected String uriToPath(URI uri) {
       return uri.getPath();