fix clang build

test/state/state.cpp

@@ -267,18 +267,20 @@ StateDiff State::build_diff(evmc_revision rev)
         {
             // TODO: This must be done even for just_created because destructed may pre-date
             // just_created. Add test.
-            d2.deleted_accounts.push_back(addr);
+            d2.deleted_accounts.emplace_back(addr);
             continue;
         }
         if (acc.erase_if_empty && rev >= EVMC_SPURIOUS_DRAGON && acc.is_empty())
         {
             if (!acc.just_created)  // Don't report just created accounts
-                d2.deleted_accounts.push_back(addr);
+                d2.deleted_accounts.emplace_back(addr);
             continue;
         }
 
         // Unconditionally report nonce and balance as modified.
-        auto& a = d2.modified_accounts.emplace_back(addr, acc.nonce, acc.balance);
+        // TODO(clang): In old Clang emplace_back without Account doesn't compile.
+        auto& a =
+            d2.modified_accounts.emplace_back(StateDiff::Account{addr, acc.nonce, acc.balance});
         // FIXME: Add a test: send ETH via SELFDESTRUCT to account with code.
         if (acc.just_created && !acc._code.empty())
             a.code = acc._code;