[RuntimeDyld] Make SectionEntry's Name field a std::string.

StringRef is unsafe here, since SectionEntry instances can outlive the
ObjectFile instances they are created from.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234910 91177308-0d34-0410-b5e6-96231b3b80d8

lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h

@@ -52,7 +52,7 @@ class Twine;
 class SectionEntry {
 public:
   /// Name - section name.
-  StringRef Name;
+  std::string Name;
 
   /// Address - address in the linker's memory where the section resides.
   uint8_t *Address;