public LocationReferenceContextBuilder newline() {
		if (parts.isEmpty()) {
			throw new IllegalStateException("Cannot add a newline without first appending text");
		}
		Part last = parts.get(parts.size() - 1);
		last.text += '\n';
		return this;
	}
Adds a newline character to the previously added text. 
@return this builder
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/navigation/locationreferences/LocationReferenceContextBuilder.java