private String cleanupRustLegacySymbol(String demangled) {
		Matcher m = RUST_LEGACY_SUFFIX_PATTERN.matcher(demangled);
		if (m.matches()) {
			return m.group(1);
		}
		return demangled;
	}
Parses the given demangled string and creates a {@link DemangledObject}

@param mangled the original mangled text
@param demangled the demangled text
@param simplify true signals to simplify types where possible, such as using simple c++ 
typedefs where possible.
@return the demangled object
@throws DemanglerParseException if there is an unexpected error parsing
@see #parse(String, String, boolean)
Ghidra/Features/GnuDemangler/src/main/java/ghidra/app/util/demangler/gnu/GnuDemanglerParser.java