[string_support] added special case of _ts_isEmpty() to handle gsl::strict_not_null changed _ts_InnerWildcardMatch() to only create some vars when there use is enabled at compile time.
[string_support]
added special case of _ts_isEmpty() to handle gsl::strict_not_null
changed _ts_InnerWildcardMatch() to only create some vars when there use is enabled at compile time.

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