Expand result with type char* to string in -data-evaluate-expression
Summary:
Expand result with type char* to string in -data-evaluate-expression.
was:
```
-data-evaluate-expression str
^done,value="0x00007fffffffece0"
```
now:
```
-data-evaluate-expression str
^done,value="0x00007fffffffece0 \"hello\""
```
All tests pass on Linux.
Test Plan: ./dotest.py -v --executable $BUILDDIR/bin/lldb tools/lldb-mi
Reviewers: abidh
Reviewed By: abidh
Subscribers: lldb-commits, dawn, abidh
Differential Revision: http://reviews.llvm.org/D10728
llvm-svn: 240631