* Add Valid method to KeyValue
* Use KeyValue.Valid in attribute add on Span
* Resource StringDetector errors for invalid attribute
* Ignore invalid attr in NewWithAttributes
The OpenTelemetry specification requires attributes conform to a
standard evaluated and returned by attribute.KeyValue.Valid. To comply
with the specification, Resources created from NewWithAttributes need to
only contain valid attributes. This adds a check to ensure this and
drops invalid attributes passed as arguments.
* Add changes to changelog
* Add nolint comment
The attribute.Set is (possibly overly) optimized to avoid allocations.
The returned value from the constructor is a value of a Set, not a
pointer to the Set. A Set contains a lock value and pointer methods so
passing the Set value raises the copylock go vet error. This copies the
same nolint comment from the `NewSet` method this used to use.
* Apply suggestions from code review
Co-authored-by: Sam Xie <xsambundy@gmail.com>
Co-authored-by: Sam Xie <xsambundy@gmail.com>
