Protractor: element.getText() returns an object and not String

getText() returns a promise, you need to resolve it:

page.clientRowName.getText().then(function (text) {
    console.log(text);
});

Or, if you just want to assert the text, let expect() resolve the promise for you:

expect(page.clientRowName.getText()).toEqual("ABC");

Promises and the Control Flow documentation page should clear things up.