Correctly copy lineno for zval asts #11203
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The comment was incorrect. Zval ASTs store their lineno in u2, but u2 does not get copied in ZVAL_COPY. This triggers use-of-uninitialized errors with MSAN. Unfortunately, I don't have a simple reproducer.
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The comment was incorrect. Zval ASTs store their lineno in u2, but u2 does not get copied in ZVAL_COPY. This triggers use-of-uninitialized errors with MSAN. Unfortunately, I don't have a simple reproducer.