public final String getExternalOriginalImportedName() {
		lock.acquire();
		try {
			checkIsValid();
			if (record == null) {
				return null;
			}
			return record.getString(SymbolDatabaseAdapter.SYMBOL_ORIGINAL_IMPORTED_NAME_COL);
		}
		finally {
			lock.release();
		}
	}
Gets the optional field which is intended to store the original mangled name for an external
{@link SymbolType#LABEL} or {@link SymbolType#FUNCTION} which has an 
{@link Address#isExternalAddress() external address}.  These symbol types correspond 
to {@link CodeSymbol} and {@link FunctionSymbol} DB symbol implementations respectively.
This is generally set when an {@link ExternalLocationDB} is renamed which generally
corresponds the external symbol being demangled.

@return original imported external name or null if not external or symbol has not been
demangled or renamed.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/symbol/MemorySymbol.java