[parser] change an instance of span_bug() to struct_span_err() to avoid ICE
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@ -214,7 +214,10 @@ impl<'a> Parser<'a> {
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let path = match bounds.remove(0) {
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let path = match bounds.remove(0) {
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GenericBound::Trait(pt, ..) => pt.trait_ref.path,
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GenericBound::Trait(pt, ..) => pt.trait_ref.path,
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GenericBound::Outlives(..) => {
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GenericBound::Outlives(..) => {
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self.span_bug(ty.span, "unexpected lifetime bound")
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return Err(self.struct_span_err(
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ty.span,
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"expected trait bound, not lifetime bound",
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));
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}
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}
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};
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};
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self.parse_remaining_bounds(Vec::new(), path, lo, true)
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self.parse_remaining_bounds(Vec::new(), path, lo, true)
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@ -0,0 +1,4 @@
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enum e{A((?'a a+?+l))}
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//~^ ERROR `?` may only modify trait bounds, not lifetime bounds
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//~| ERROR expected one of `)`, `+`, or `,`
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//~| ERROR expected trait bound, not lifetime bound
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@ -0,0 +1,20 @@
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error: `?` may only modify trait bounds, not lifetime bounds
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--> $DIR/issue-68890.rs:1:11
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LL | enum e{A((?'a a+?+l))}
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| ^
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error: expected one of `)`, `+`, or `,`, found `a`
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--> $DIR/issue-68890.rs:1:15
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LL | enum e{A((?'a a+?+l))}
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| ^ expected one of `)`, `+`, or `,`
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error: expected trait bound, not lifetime bound
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--> $DIR/issue-68890.rs:1:11
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LL | enum e{A((?'a a+?+l))}
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| ^^^
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error: aborting due to 3 previous errors
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