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Handle nil AST fields in pattern matcher - #1777
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dajiaohuang wants to merge 3 commits into
Open
dajiaohuang wants to merge 3 commits into
dajiaohuang wants to merge 3 commits into
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Fix a panic when a pattern traverses a typed nil AST child. Add a regression test for a break statement with no label.
Review update: the unrelated generic-instantiation change and its fixture were removed through a normal follow-up commit; #1764 tracks that fix separately. Current-head validation: go test ./pattern (92 tests) passed; git diff --check passed. Prior validation text above is historical unless repeated here.