[interop][SwiftToCxx] use the more appropriate String -> NSString bridging invocation

This fixes some CI failures

Author: hyp

lib/PrintAsClang/PrintClangValueType.cpp

@@ -129,14 +129,14 @@ static void addCppExtensionsToStdlibType(const NominalTypeDecl *typeDecl,
                    "return result;\n"
                    "};\n";
     cPrologueOS << "SWIFT_EXTERN void *_Nonnull "
-                   "$sSS23_bridgeToObjectiveCImplyXlyF(swift_interop_stub_"
+                   "$sSS10FoundationE19_bridgeToObjectiveCSo8NSStringCyF(swift_interop_stub_"
                    "Swift_String) SWIFT_NOEXCEPT SWIFT_CALL;\n";
     printer.printObjCBlock([](raw_ostream &os) {
       os << "  ";
       ClangSyntaxPrinter(os).printInlineForThunk();
       os << "operator NSString * _Nonnull () const noexcept {\n";
       os << "    return (__bridge_transfer NSString "
-            "*)(_impl::$sSS23_bridgeToObjectiveCImplyXlyF(_impl::swift_interop_"
+            "*)(_impl::$sSS10FoundationE19_bridgeToObjectiveCSo8NSStringCyF(_impl::swift_interop_"
             "passDirect_Swift_String(_getOpaquePointer())));\n";
       os << "  }\n";
     });

test/Interop/SwiftToCxx/stdlib/string/string-to-nsstring.mm

@@ -32,7 +32,7 @@ int main() {
   NSString *nsStr = emptyString;
 }
 
-// CHECKARC: %[[VAL:.*]] = call swiftcc i8* @"$sSS23_bridgeToObjectiveCImplyXlyF"
+// CHECKARC: %[[VAL:.*]] = call swiftcc i8* @"$sSS10FoundationE19_bridgeToObjectiveCSo8NSStringCyF"
 // CHECKARC: call i8* @llvm.objc.autorelease(i8* %[[VAL]])
 // CHECKARC: @llvm.objc.
 // CHECKARC-SAME: autorelease(i8*)

test/Interop/SwiftToCxx/stdlib/swift-stdlib-in-cxx.swift

@@ -77,7 +77,7 @@
 // CHECK-NEXT:  static inline String init();
 // CHECK-NEXT:  #if defined(__OBJC__)
 // CHECK-NEXT:  inline __attribute__((always_inline)) operator NSString * _Nonnull () const noexcept {
-// CHECK-NEXT:    return (__bridge_transfer NSString *)(_impl::$sSS23_bridgeToObjectiveCImplyXlyF(_impl::swift_interop_passDirect_Swift_String(_getOpaquePointer())));
+// CHECK-NEXT:    return (__bridge_transfer NSString *)(_impl::$sSS10FoundationE19_bridgeToObjectiveCSo8NSStringCyF(_impl::swift_interop_passDirect_Swift_String(_getOpaquePointer())));
 // CHECK-NEXT:   }
 // CHECK-EMPTY:
 // CHECK-NEXT:  #endif