Auto merge of #56810 - sinkuu:build_match, r=oli-obk

Improve MIR match generation for ranges

Improves MIR match generation to rule out ranges/values distinct from the range that has been tested. e.g., for this code:

```rust
match x {
    0..=5 if b => 0,
    6..=10 => 1,
    _ => 2,
}
```

MIR (before):

```rust
bb0: { ...; _4 = Le(const 0i32, _1); switchInt(move _4) -> [false: bb6, otherwise: bb5]; }
bb1: { _3 = const 0i32; goto -> bb8; }
bb2: { _6 = _2; switchInt(move _6) -> [false: bb6, otherwise: bb1]; } // If `!b`, jumps to test if `6 <= x <= 10`.
bb3: { _3 = const 1i32; goto -> bb8; }
bb4: { _3 = const 2i32; goto -> bb8; }
bb5: { _5 = Le(_1, const 5i32); switchInt(move _5) -> [false: bb6, otherwise: bb2]; }
bb6: { _7 = Le(const 6i32, _1); switchInt(move _7) -> [false: bb4, otherwise: bb7]; }
bb7: { _8 = Le(_1, const 10i32); switchInt(move _8) -> [false: bb4, otherwise: bb3]; }
```

MIR (after):
```rust
bb0: { ...; _4 = Le(const 0i32, _1); switchInt(move _4) -> [false: bb5, otherwise: bb6]; }
bb1: { _3 = const 0i32; goto -> bb8; }
bb2: { _6 = _2; switchInt(move _6) -> [false: bb4, otherwise: bb1]; } // If `!b`, jumps to `_ =>` arm.
bb3: { _3 = const 1i32; goto -> bb8; }
bb4: { _3 = const 2i32; goto -> bb8; }
bb5: { _7 = Le(const 6i32, _1); switchInt(move _7) -> [false: bb4, otherwise: bb7]; }
bb6: { _5 = Le(_1, const 5i32); switchInt(move _5) -> [false: bb5, otherwise: bb2]; }
bb7: { _8 = Le(_1, const 10i32); switchInt(move _8) -> [false: bb4, otherwise: bb3]; }
```

cc #29623

0 files changed, 0 insertions, 0 deletions