[clang] [libcxx] Allow string to use SSO in constant evaluation. (PR #66576)

[James Y Knight via cfe-commits]

================
@@ -1969,7 +1955,8 @@ private:
                     allocator_type __a = __str.__alloc();
                     auto __allocation = std::__allocate_at_least(__a, 
__str.__get_long_cap());
                     __begin_lifetime(__allocation.ptr, __allocation.count);
-                    __alloc_traits::deallocate(__alloc(), 
__get_long_pointer(), __get_long_cap());
+                    if (__is_long())
+                        __alloc_traits::deallocate(__alloc(), 
__get_long_pointer(), __get_long_cap());
----------------
jyknight wrote:

Fixed via PR #67200.

https://github.com/llvm/llvm-project/pull/66576
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