Silence warning about loss of precision

Explicitly cast to uintptr_t before casting to a 32-bit value.  Because this
code path is meant to be used in a 32-bit address space, this truncation should
be safe.

Unwind-EHABI.h:25:12: error: cast from pointer to smaller type 'uint32_t' (aka 'unsigned int') loses information

git-svn-id: 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed