@Test
	public void testInterveningCallOther() throws Exception {
		SleighLanguage language = SleighLanguageHelper.getMockBE64Language();

		JitAnalysisContext context = makeContext(language, """
				r0 = r1;
				r0 = pcodeop_one(r1);
				goto 0x1234;
				""", lib);
		JitControlFlowModel cfm = new JitControlFlowModel(context);
		JitDataFlowModel dfm = new JitDataFlowModel(context, cfm);
		JitVarScopeModel vsm = new JitVarScopeModel(cfm, dfm);
		JitOpUseModel oum = new JitOpUseModel(context, cfm, dfm, vsm);

		PcodeOp copyOp = assertOp(PcodeOp.COPY, context.getPassage().getCode().getFirst());
		assertTrue(oum.isUsed(dfm.getJitOp(copyOp)));
	}
Because the userop could technically access any varnode, then any live varnode at the time of
the userop call must be considered used.

@throws Exception because
Ghidra/Test/IntegrationTest/src/test.slow/java/ghidra/pcode/emu/jit/analysis/JitOpUseModelTest.java