@Override
			public void modifyLatest(ProgramDB program) {
				try {
					Namespace ns;
					GhidraClass gc;
					SymbolTable symtab = program.getSymbolTable();
					FunctionManager funcMgr = program.getFunctionManager();
					ns = symtab.createNameSpace(program.getGlobalNamespace(), "Blue",
						SourceType.USER_DEFINED);
					assertNotNull(ns);
					symtab.createLabel(addr(program, "0x1001000"), "BlueSymbolLatest", ns,
						SourceType.USER_DEFINED);
					gc = symtab.createClass(program.getGlobalNamespace(), "Red",
						SourceType.USER_DEFINED);
					assertNotNull(gc);
					Function redFunction = funcMgr.getFunctionAt(addr(program, "0x1002a91"));
//					redFunction.setName("RedSymbolLatest");
					redFunction.getSymbol().setNamespace(gc);
				}
				catch (Exception e) {
					Assert.fail(e.getMessage());
				}
			}
Test the merge of the versioned program's symbols in the listing.
Ghidra/Features/Base/src/test.slow/java/ghidra/app/merge/listing/SymbolMergeManagerNamespace1Test.java