protected boolean isMissingType(@Nonnull String descriptor) {
		Type type = Types.typeFromDescriptor(descriptor);
		return isMissingType(type);
	}
@param descriptor
		Some non-method descriptor.

@return {@code true} if the type in the descriptor is found in the {@link #workspace}.
recaf-core/src/main/java/software/coley/recaf/services/compile/stub/ClassStubGenerator.java