[js/web] fix test runner with optional input/output #20399
Merged
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Description
fix test runner with optional input/output.
This change fixes the OP test runner (.jsonc format test) with optional input(s) and/or output(s).
this fix reveals a problem of dealing with optional outputs:
This problem may need to be fixed or workaround in separated PR. This PR does not fix this problem. Failed test cases are modified to work - please note this PR does not break those test cases as they never work.