UnitaryOverlap cannot handle barriers

[caleb-johnson]

Environment

• Qiskit Terra version: 0.45.0rc1
• Python version: 3.10
• Operating system: macOS

What is happening?

UnitaryOverlap circuit breaks when input circuits contain barriers

How can we reproduce the issue?

from qiskit.circuit import QuantumCircuit
from qiskit.circuit.library import UnitaryOverlap

qc1 = QuantumCircuit(2)
qc1.ry(np.pi/2, qc1.qubits)
qc1.cx(0, 1)
qc1.barrier()
qc1.rz(np.pi/2, qc1.qubits)

# Create the overlap circuit
overlap = UnitaryOverlap(qc1, qc1)

results in:
CircuitError: 'One or more instructions cannot be converted to a gate. "barrier" is not a gate instruction

What should happen?

UnitaryOverlap should be able to handle circuits with barriers as if they weren't there.

Any suggestions?

No response

[jakelishman]

Yeah ok, this one is probably on me for letting it through review: #10734 (review).