Fix FP when coercion kicks in
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@ -1140,7 +1140,8 @@ fn detect_same_item_push<'tcx>(
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walk_expr(&mut same_item_push_visitor, body);
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if same_item_push_visitor.should_lint {
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if let Some((vec, pushed_item)) = same_item_push_visitor.vec_push {
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let ty = cx.typeck_results().expr_ty(pushed_item);
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let vec_ty = cx.typeck_results().expr_ty(vec);
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let ty = vec_ty.walk().nth(1).unwrap().expect_ty();
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if cx
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.tcx
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.lang_items()
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@ -100,4 +100,15 @@ fn main() {
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for _ in 0..10 {
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vec14.push(std::fs::File::open("foobar").unwrap());
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}
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// Fix #5979
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#[derive(Clone)]
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struct S {}
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trait T {}
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impl T for S {}
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let mut vec15: Vec<Box<dyn T>> = Vec::new();
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for _ in 0..10 {
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vec15.push(Box::new(S {}));
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}
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}
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