Fixed 2 more issues found by the address sanitizer:

1 - A store off the end of a buffer in ValueObject.cpp
2 - DataExtractor had cases where bad offsets could cause invalid memory to be accessed.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@174757 91177308-0d34-0410-b5e6-96231b3b80d8