Index: lldb/source/Plugins/Language/ObjC/Cocoa.cpp
===================================================================
--- lldb/source/Plugins/Language/ObjC/Cocoa.cpp
+++ lldb/source/Plugins/Language/ObjC/Cocoa.cpp
@@ -659,6 +659,32 @@
   return true;
 }
 
+static void NSURL_ConcatSummary(StreamString &first, const StreamString &second,
+    std::string prefix, std::string suffix) {
+  if (second.Empty())
+    return;
+
+  // Remove suffix and quotation char from first
+  std::string first_str_copy = first.GetString();
+  llvm::StringRef first_str = first_str_copy;
+  if (!suffix.empty())
+    first_str.consume_back(suffix);
+  if (!first_str.empty())
+    first_str = first_str.drop_back();
+
+  // Remove prefix and quotation char from second
+  llvm::StringRef second_str = second.GetString();
+  if (!prefix.empty())
+    second_str.consume_front(prefix);
+  if (!second_str.empty())
+    second_str = second_str.drop_front();
+
+  if (!first_str.empty() && !second_str.empty()) {
+    first.Clear();
+    first.Printf("%s -- %s", first_str.str().c_str(), second_str.str().c_str());
+  }
+}
+
 bool lldb_private::formatters::NSURLSummaryProvider(
     ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
   ProcessSP process_sp = valobj.GetProcessSP();
@@ -702,21 +728,20 @@
   if (!NSStringSummaryProvider(*text, summary, options))
     return false;
   if (base && base->GetValueAsUnsigned(0)) {
-    std::string summary_str = summary.GetString();
-
-    if (!summary_str.empty())
-      summary_str.pop_back();
-    summary_str += " -- ";
     StreamString base_summary;
     if (NSURLSummaryProvider(*base, base_summary, options) &&
         !base_summary.Empty()) {
-      llvm::StringRef base_str = base_summary.GetString();
-      if (base_str.size() > 2)
-        base_str = base_str.drop_front(2);
-      summary_str += base_str;
+      std::string prefix, suffix;
+      if (Language *language = Language::FindPlugin(options.GetLanguage())) {
+        if (!language->GetFormatterPrefixSuffix(*text, ConstString("NSString"),
+                                                prefix, suffix)) {
+          prefix.clear();
+          suffix.clear();
+        }
+      }
+
+      NSURL_ConcatSummary(summary, base_summary, prefix, suffix);
     }
-    summary.Clear();
-    summary.PutCString(summary_str);
   }
   if (!summary.Empty()) {
     stream.PutCString(summary.GetString());