Fixed SBFrame to properly check to make sure it has a valid m_opaque_sp object
before trying to use it.

llvm-svn: 121748
diff --git a/lldb/source/API/SBSymbol.cpp b/lldb/source/API/SBSymbol.cpp
index 64416d0..4c8e02c 100644
--- a/lldb/source/API/SBSymbol.cpp
+++ b/lldb/source/API/SBSymbol.cpp
@@ -143,3 +143,9 @@
 {
     return m_opaque_ptr;
 }
+
+void
+SBSymbol::reset (lldb_private::Symbol *symbol)
+{
+    m_opaque_ptr = symbol;
+}