Fix formatting of if_branches error
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@ -4119,8 +4119,8 @@ pp_when({if_branches, Then, ThenType0, Else, ElseType0}) ->
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Branches = [ {Then, ThenType} | [ {B, ElseType} || B <- if_branches(Else) ] ],
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{pos(element(1, hd(Branches))),
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io_lib:format("when comparing the types of the if-branches\n"
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"~s", [ [ io_lib:format("~s (at ~s)\n", [pp_typed(" - ", B, BType), pp_loc(B)])
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|| {B, BType} <- Branches ] ])};
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"~s", [string:join([ io_lib:format("~s (at ~s)", [pp_typed(" - ", B, BType), pp_loc(B)])
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|| {B, BType} <- Branches ], "\n")])};
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pp_when({case_pat, Pat, PatType0, ExprType0}) ->
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{PatType, ExprType} = instantiate({PatType0, ExprType0}),
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{pos(Pat),
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