Rename enableDedicatedDictSearch to dedicatedDictSearch in MatchState

This makes it clear that not only is the feature allowed here, we're actually
using it, as opposed to the CCtxParam field, in which it's enabled, but we may
or may not be using it.

lib/compress/zstd_compress.c

@@ -3403,7 +3403,7 @@ static size_t ZSTD_initCDict_internal(
     DEBUGLOG(3, "ZSTD_initCDict_internal (dictContentType:%u)", (unsigned)dictContentType);
     assert(!ZSTD_checkCParams(cParams));
     cdict->matchState.cParams = cParams;
-    cdict->matchState.enableDedicatedDictSearch = params.enableDedicatedDictSearch;
+    cdict->matchState.dedicatedDictSearch = params.enableDedicatedDictSearch;
     if ((dictLoadMethod == ZSTD_dlm_byRef) || (!dictBuffer) || (!dictSize)) {
         cdict->dictContent = dictBuffer;
     } else {
@@ -3512,9 +3512,9 @@ ZSTDLIB_API ZSTD_CDict* ZSTD_createCDict_advanced2(const void* dict, size_t dict
                                                   ZSTD_CCtx_params* cctxParams,
                                                   ZSTD_customMem customMem)
 {
-    int const enableDedicatedDictSearch = cctxParams->enableDedicatedDictSearch &&
+    int const dedicatedDictSearch = cctxParams->enableDedicatedDictSearch &&
         ZSTD_dedicatedDictSearch_isSupported(cctxParams->compressionLevel, dictSize);
-    if (!enableDedicatedDictSearch) {
+    if (!dedicatedDictSearch) {
         ZSTD_compressionParameters cParams = ZSTD_getCParams_internal(
             cctxParams->compressionLevel, ZSTD_CONTENTSIZE_UNKNOWN, dictSize);
         return ZSTD_createCDict_advanced(dict, dictSize,