Make the IsValid() operator for SBLineEntry "do the right thing" by returning true if the line entry is valid, not just if the opaque pointer to lldb_private::LineEntry is non NULL.

llvm-svn: 159287

lldb/source/API/SBLineEntry.cpp

@@ -110,7 +110,7 @@ SBLineEntry::GetEndAddress () const
 bool
 SBLineEntry::IsValid () const
 {
-    return m_opaque_ap.get() != NULL;
+    return m_opaque_ap.get() && m_opaque_ap->IsValid();
 }