Move StringPool to libandroidfw

Test: verified affected tests pass
Bug: 232940948
Change-Id: I22089893d7e5013f759c39ce190bec07fa6435db
diff --git a/tools/aapt2/cmd/Dump_test.cpp b/tools/aapt2/cmd/Dump_test.cpp
index d018882..03da364 100644
--- a/tools/aapt2/cmd/Dump_test.cpp
+++ b/tools/aapt2/cmd/Dump_test.cpp
@@ -30,12 +30,7 @@
 
 using DumpTest = CommandTestFixture;
 
-class NoopDiagnostics : public IDiagnostics {
- public:
-  void Log(Level level, DiagMessageActual& actualMsg) override {
-  }
-};
-static NoopDiagnostics noop_diag;
+static android::NoOpDiagnostics noop_diag;
 
 void DumpBadgingToString(LoadedApk* loaded_apk, std::string* output, bool include_meta_data = false,
                          bool only_permissions = false) {
@@ -97,4 +92,4 @@
   ASSERT_EQ(output, expected);
 }
 
-}  // namespace aapt
\ No newline at end of file
+}  // namespace aapt