[ptr-compr] Enable smi-corrupting decompression

... by flipping the flag.

Bug: v8:9706
Change-Id: Ie0e70a243a5a6a703cdaa27c1ed55a78d9904bbe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1826732
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64075}

src/common/globals.h

@@ -248,7 +248,7 @@ using AtomicTagged_t = base::AtomicWord;
 
 // Defines whether to use smi-corrupting or branchful implementation of pointer
 // decompression should be used.
-constexpr bool kUseSmiCorruptingPtrDecompression = false;
+constexpr bool kUseSmiCorruptingPtrDecompression = true;
 
 STATIC_ASSERT(kTaggedSize == (1 << kTaggedSizeLog2));
 STATIC_ASSERT((kTaggedSize == 8) == TAGGED_SIZE_8_BYTES);