feat(compress): move match-state invalidation leaf into Rust

Route match-state invalidation through a Rust leaf. C still computes the
private window pointer difference and passes the opaque dictionary-state
pointer, while Rust preserves the window-limit, next-index, dictionary,
optimal-parser, and dictionary-match-state reset order. Add a focused test
for all invalidated fields and use the concrete C pointer type at the ABI
boundary to avoid strict-aliasing warnings.

Test Plan:
- cargo fmt --manifest-path rust/Cargo.toml -- --check
- ulimit -v 41943040 && CARGO_BUILD_JOBS=1 cargo clippy --manifest-path rust/Cargo.toml --all-targets -- -D warnings
- ulimit -v 41943040 && CARGO_BUILD_JOBS=1 cargo test --manifest-path rust/Cargo.toml zstd_compress::tests::invalidate_match_state -- --nocapture
- ulimit -v 41943040 && make -j1
- ulimit -v 41943040 && make -j1 -C tests test-fuzzer FUZZERTEST=-T3s FUZZER_FLAGS=--no-big-tests

lib/compress/zstd_compress.c

@@ -1722,6 +1722,10 @@ size_t ZSTD_rust_buildBlockEntropyStats(
         void* workspace, size_t wkspSize);
 void ZSTD_rust_resetCompressedBlockState(ZSTD_compressedBlockState_t* bs);
 void ZSTD_rust_invalidateRepCodes(U32 rep[ZSTD_REP_NUM]);
+void ZSTD_rust_invalidateMatchState(
+        size_t endT, U32* lowLimit, U32* dictLimit,
+        U32* nextToUpdate, U32* loadedDictEnd, U32* litLengthSum,
+        const ZSTD_MatchState_t** dictMatchState);
 typedef char ZSTD_rust_invalidate_rep_count[(ZSTD_REP_NUM == 3) ? 1 : -1];
 void ZSTD_rust_confirmRepcodesAndEntropyTables(
         ZSTD_compressedBlockState_t** prevCBlock,
@@ -3718,21 +3722,6 @@ void ZSTD_reset_compressedBlockState(ZSTD_compressedBlockState_t* bs)
     ZSTD_rust_resetCompressedBlockState(bs);
 }
 
-/*! ZSTD_invalidateMatchState()
- *  Invalidate all the matches in the match finder tables.
- *  Requires nextSrc and base to be set (can be NULL).
- */
-static void ZSTD_invalidateMatchState(ZSTD_MatchState_t* ms)
-{
-    ZSTD_rust_windowClear((size_t)(ms->window.nextSrc - ms->window.base),
-                          &ms->window.lowLimit, &ms->window.dictLimit);
-
-    ms->nextToUpdate = ms->window.dictLimit;
-    ms->loadedDictEnd = 0;
-    ms->opt.litLengthSum = 0;  /* force reset of btopt stats */
-    ms->dictMatchState = NULL;
-}
-
 /**
  * Controls, for this matchState reset, whether the tables need to be cleared /
  * prepared for the coming compression (ZSTDcrp_makeClean), or whether the
@@ -3807,7 +3796,13 @@ static void ZSTD_rust_resetMatchState_invalidate(void* opaque)
 {
     ZSTD_rust_resetMatchStateContext* const context =
             (ZSTD_rust_resetMatchStateContext*)opaque;
-    ZSTD_invalidateMatchState(context->ms);
+    ZSTD_MatchState_t* const ms = context->ms;
+    ZSTD_rust_invalidateMatchState(
+            (size_t)(ms->window.nextSrc - ms->window.base),
+            &ms->window.lowLimit, &ms->window.dictLimit,
+            &ms->nextToUpdate, &ms->loadedDictEnd,
+            &ms->opt.litLengthSum,
+            &ms->dictMatchState);
 }
 
 static void ZSTD_rust_resetMatchState_clearTables(void* opaque)