7 files declare their use of RestClient in Salesforce Suite 8.4

RestClientTest.php in tests/src/Unit/RestClientTest.php

SalesforceCommandsBase.php in src/Commands/SalesforceCommandsBase.php

SalesforceMappingCommands.php in modules/salesforce_mapping/src/Commands/SalesforceMappingCommands.php

SalesforceMappingCommandsBase.php in modules/salesforce_mapping/src/Commands/SalesforceMappingCommandsBase.php

SalesforcePullCommands.php in modules/salesforce_pull/src/Commands/SalesforcePullCommands.php

SalesforcePushCommands.php in modules/salesforce_push/src/Commands/SalesforcePushCommands.php

TestRestClient.php in src/Tests/TestRestClient.php