implement range-to patterns

[m4rch3n1ng]

partially specified here (the reference is out of date and does not yet show RangeToExclusivePatterns).

a slightly smaller diff for #229:

diff

--- .tmp/list.txt	2025-03-01 18:19:41.855810665 +0100
+++ .tmp/list.txt.range-to-pattern	2025-03-03 00:14:52.587455370 +0100
@@ -186,7 +186,6 @@
 tests/ui/generic-const-items/const-trait-impl.rs
 tests/ui/generic-const-items/def-site-mono.rs
 tests/ui/generic-const-items/hkl_where_bounds.rs
-tests/ui/half-open-range-patterns/pat-tuple-4.rs
 tests/ui/half-open-range-patterns/range_pat_interactions0.rs
 tests/ui/higher-ranked/trait-bounds/issue-95230.rs
 tests/ui/hygiene/assoc_ty_bindings.rs
@@ -247,7 +246,6 @@
 tests/ui/parser/parser-unicode-whitespace.rs
 tests/ui/parser/trait-plusequal-splitting.rs
 tests/ui/parser/unsafe-foreign-mod.rs
-tests/ui/pattern/usefulness/integer-ranges/issue-117648-overlapping_range_endpoints-false-positive.rs
 tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs
 tests/ui/raw-ref-op/amp-raw-without-mut-const-is-a-normal-borrow.rs
 tests/ui/resolve/non-macro-attrs-accepted.rs

[maxbrunsfeld]

Thanks!