fix: flush of the pending high surrogate#1
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Boris (dzodkin33) wants to merge 1 commit into
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Bug:
GraalPy's json scanner silently drops unpaired high surrogates from decoded JSON strings instead of preserving them like CPython does. Caused by a highSurrogate state variable that only gets flushed to the output when immediately followed by a matching low-surrogate escape: followed by a literal char, by another high surrogate, or by the closing quote.
Fix:
Added explicit flush of the pending high surrogate at those 3 loss points.