Change Library service protocol ids

runtime/vm/debugger_test.cc

Index: runtime/vm/debugger_test.cc
diff --git a/runtime/vm/debugger_test.cc b/runtime/vm/debugger_test.cc
index a660e7ad4d4eac687964f43c99028e9034c2deea..b991697da417caf3e1a183f420a53f0dbcca23f4 100644
--- a/runtime/vm/debugger_test.cc
+++ b/runtime/vm/debugger_test.cc
@@ -53,6 +53,7 @@ TEST_CASE(Debugger_PrintBreakpointsToJSONArray) {
   Library& vmlib = Library::Handle();
   vmlib ^= Api::UnwrapHandle(lib);
   EXPECT(!vmlib.IsNull());
+  const String& private_key = String::Handle(vmlib.private_key());
 
   Isolate* isolate = Isolate::Current();
   Debugger* debugger = isolate->debugger();
@@ -83,7 +84,7 @@ TEST_CASE(Debugger_PrintBreakpointsToJSONArray) {
         "\"breakpointNumber\":2,\"resolved\":false,"
         "\"location\":{\"type\":\"UnresolvedSourceLocation\","
         "\"script\":{\"type\":\"@Script\",\"fixedId\":true,"
-        "\"id\":\"libraries\\/%" Pd
+        "\"id\":\"libraries\\/%s"
         "\\/scripts\\/test-lib\\/0\","
         "\"uri\":\"test-lib\","
         "\"_kind\":\"script\"},\"line\":3}},"
@@ -91,11 +92,11 @@ TEST_CASE(Debugger_PrintBreakpointsToJSONArray) {
         "\"breakpointNumber\":1,\"resolved\":false,"
         "\"location\":{\"type\":\"UnresolvedSourceLocation\","
         "\"script\":{\"type\":\"@Script\",\"fixedId\":true,"
-        "\"id\":\"libraries\\/%" Pd
+        "\"id\":\"libraries\\/%s"
         "\\/scripts\\/test-lib\\/0\","
         "\"uri\":\"test-lib\","
         "\"_kind\":\"script\"},\"line\":2}}]",
-        vmlib.index(), vmlib.index());
+        private_key.ToCString(), private_key.ToCString());
   }
 }