private void fallthroughOverride(ProgramDB program, String description) {
		int txId = program.startTransaction(description);
		boolean commit = false;
		try {
			// Fallthrough override from 0100354f to 01003559.
			Instruction instruction =
				program.getListing().getInstructionAt(addr(program, "0100354f"));
			instruction.setFallThrough(addr(program, "01003559"));
			commit = true;
			assertEquals(addr(program, "01003559"), instruction.getFallThrough());
			assertEquals(FlowOverride.NONE, instruction.getFlowOverride());
		}
		finally {
			program.endTransaction(txId, commit);
		}
		ReferenceManager refMgr = program.getReferenceManager();
		Reference[] referencesFrom = refMgr.getReferencesFrom(addr(program, "0100354f"), 1);
		assertEquals(0, referencesFrom.length);
	}
Fallthrough override from 0100354f to 01003559.
@param program override the flow in this program.
@param description description for the transaction that overrides the flow.
Ghidra/Features/Base/src/test.slow/java/ghidra/app/merge/listing/CodeUnitMergeManagerOverrideTest.java