pipefail: avoid try outputs value when catch exists, avoid finally runs twice, avoid finally funs before try finish.

[WindSoilder]

Fixes: #17730
Fixes: #17715
Fixes: #17567

This pr is going to do the following things in order to fix these issues at once:

1. Making Instruction::Collect ignore pipefail checking, so anything invoves collect won't check pipefail, for example: let, argument passing, binary operation, match expression
2. Restrict try block from streaming if it contains catch block or finally block. This is done by adding a new Instruction::CollectFailuable after relative block. It is similar to Instruction::Collect, except it checks pipefail.
3. Before running finally block, evaluate PopFinallyRun instruction first, this avoids duplicate finally block runs.

Release notes summary - What our users need to know

finally block won't run twice if error produced in finally block

> try {
} finally {
    print "inside finally"
    error make
}

It prints "inside finally" once.

finally block won't run before try/catch finished

try {
    ^ping -n 3 127.0.0.1   # or `^ping -c 3 127.0.0.1` on Linux/macOS
} finally {
    print "finally ran"
}

Finally won't run before try finished.
NOTES ABOUT STREAMING:
try won't streaming if catch or finally exists.
catch won't streaming if finally exists

let ignores pipefail checking

> sh -c "echo 'hello\nworld' && false" | lines | let x

The variable x will be assigned.

Try doesn't produce output if it has an error

> try { bash -c 'exit 1' | is-empty } catch { 'result-on-catch' }
result-on-catch

It returns result-on-catch, and redundant true won't be outputed.

Tasks after submitting

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