Removed explicit NULL checks for shared pointers
and instead made us use implicit casts to bool.
This generated a warning in C++11.

<rdar://problem/11930775>


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@161559 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Commands/CommandObjectDisassemble.cpp b/source/Commands/CommandObjectDisassemble.cpp
index 029fc2e..5247743 100644
--- a/source/Commands/CommandObjectDisassemble.cpp
+++ b/source/Commands/CommandObjectDisassemble.cpp
@@ -245,7 +245,7 @@
     const char *plugin_name = m_options.GetPluginName ();
     DisassemblerSP disassembler = Disassembler::FindPlugin(m_options.arch, plugin_name);
 
-    if (disassembler == NULL)
+    if (!disassembler)
     {
         if (plugin_name)
             result.AppendErrorWithFormat ("Unable to find Disassembler plug-in named '%s' that supports the '%s' architecture.\n",