needless_return: look inside else if parts as well
#14798
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`if` expressions don't necessarily contain a block in the `else` part in the presence of an `else if`. The `else` part, if present, must be handled as a regular expression, not necessarily as a block expression.
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ifexpressions don't necessarily contain a block in theelsepart in the presence of anelse if. Theelsepart, if present, must be handled as a regular expression, not necessarily as a block expression.Found while applying Clippy to triagebot and looking at the result. This also found an issue in Clippy itself.
changelog: [
needless_return]: look insideelse ifparts as well