Experimentally add *heterogeneous* try blocks
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148725 moved the default to being homogeneous; this adds heterogeneous ones back under an obvious-bikeshed syntax so people can experiment with that as well. Essentially resolves 149025 by letting them move to this syntax instead.
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This was referenced Nov 30, 2025
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#148725 moved the default to being homogeneous; this adds heterogeneous ones back under an obvious-bikeshed syntax so people can experiment with that as well.
Essentially resolves #149025 by letting them move to this syntax instead.
New tracking issue: #149488
Related RFC: rust-lang/rfcs#3721 (comment) (specifically about experimenting)