Made sierra generation external stack based.

[orizi]

This change is 

[ilyalesokhin-starkware]

crates/cairo-lang-sierra-generator/src/block_generator.rs line 111 at r1 (raw file):

) -> Maybe<Vec<StatementWithLocation>> {
    let mut block_gen_stack = vec![BlockGenStackElement::Block(BlockId::root())];
    while let Some(pe) = block_gen_stack.pop() {

what does pe stand for?
Can you rename it?

Code quote:

pe

[orizi]

Reviewable status: 0 of 3 files reviewed, 1 unresolved discussion (waiting on @ilyalesokhin-starkware)

---

crates/cairo-lang-sierra-generator/src/block_generator.rs line 111 at r1 (raw file):

Previously, ilyalesokhin-starkware wrote…

what does pe stand for?
Can you rename it?

Done.

[ilyalesokhin-starkware]

crates/cairo-lang-sierra-generator/src/block_generator.rs line 104 at r2 (raw file):

}

/// Generates Sierra statements for a given for the function from the given [ExprGeneratorContext].

Suggestion:

Generates Sierra statements for a function from the given [ExprGeneratorContext].

[ilyalesokhin-starkware]

Reviewed 2 of 3 files at r1, 3 of 3 files at r2, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @orizi)

[orizi]

Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @ilyalesokhin-starkware)

---

crates/cairo-lang-sierra-generator/src/block_generator.rs line 104 at r2 (raw file):

}

/// Generates Sierra statements for a given for the function from the given [ExprGeneratorContext].

Done.

[ilyalesokhin-starkware]

Reviewed 1 of 1 files at r3, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @orizi)

[ilyalesokhin-starkware]

Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @orizi)