error: cannot define duplicate `where` clauses on an item
  --> $DIR/duplicate-where-clauses.rs:1:32
   |
LL | struct A where (): Sized where (): Sized {}
   |                -               ^
   |                |
   |                previous `where` clause starts here
   |
help: consider joining the two `where` clauses into one
   |
LL - struct A where (): Sized where (): Sized {}
LL + struct A where (): Sized, (): Sized {}
   |

error: cannot define duplicate `where` clauses on an item
  --> $DIR/duplicate-where-clauses.rs:4:30
   |
LL | fn b() where (): Sized where (): Sized {}
   |              -               ^
   |              |
   |              previous `where` clause starts here
   |
help: consider joining the two `where` clauses into one
   |
LL - fn b() where (): Sized where (): Sized {}
LL + fn b() where (): Sized, (): Sized {}
   |

error: cannot define duplicate `where` clauses on an item
  --> $DIR/duplicate-where-clauses.rs:7:30
   |
LL | enum C where (): Sized where (): Sized {}
   |              -               ^
   |              |
   |              previous `where` clause starts here
   |
help: consider joining the two `where` clauses into one
   |
LL - enum C where (): Sized where (): Sized {}
LL + enum C where (): Sized, (): Sized {}
   |

error: cannot define duplicate `where` clauses on an item
  --> $DIR/duplicate-where-clauses.rs:10:33
   |
LL | struct D where (): Sized, where (): Sized {}
   |                -                ^
   |                |
   |                previous `where` clause starts here
   |
help: consider joining the two `where` clauses into one
   |
LL - struct D where (): Sized, where (): Sized {}
LL + struct D where (): Sized, (): Sized {}
   |

error: cannot define duplicate `where` clauses on an item
  --> $DIR/duplicate-where-clauses.rs:13:31
   |
LL | fn e() where (): Sized, where (): Sized {}
   |              -                ^
   |              |
   |              previous `where` clause starts here
   |
help: consider joining the two `where` clauses into one
   |
LL - fn e() where (): Sized, where (): Sized {}
LL + fn e() where (): Sized, (): Sized {}
   |

error: cannot define duplicate `where` clauses on an item
  --> $DIR/duplicate-where-clauses.rs:16:31
   |
LL | enum F where (): Sized, where (): Sized {}
   |              -                ^
   |              |
   |              previous `where` clause starts here
   |
help: consider joining the two `where` clauses into one
   |
LL - enum F where (): Sized, where (): Sized {}
LL + enum F where (): Sized, (): Sized {}
   |

error: aborting due to 6 previous errors