@Nullable
	default FieldMember getDeclaredField(@Nonnull String name, @Nonnull String descriptor) {
		return fieldStream()
				.filter(f -> f.getName().equals(name) && f.getDescriptor().equals(descriptor))
				.findFirst().orElse(null);
	}
@param name
		Field name.
@param descriptor
		Field descriptor.

@return Field matching definition, or {@code null} if none were found.
recaf-core/src/main/java/software/coley/recaf/info/ClassInfo.java