private Address addr(Program program, int offset) {
		return program.getAddressFactory().getDefaultAddressSpace().getAddress(offset);
	}
Test that programMerge can replace the symbol differences between
Program1 and Program2 when program1 and program2 have the same variables
at differing places that would cause a duplicate name when applied
individually but not if all are applied.
Ghidra/Features/Base/src/test.slow/java/ghidra/program/util/ProgramMerge1Test.java