Fixing broken bots after r238505.

Need non-const iterator inserts too. These failures seem to be due to differences in the versions of libstdc++ on various operating systems.

llvm-svn: 238516

llvm/include/llvm/Support/CommandLine.h

@@ -1335,6 +1335,13 @@ public:
     return Storage.insert(pos, value);
   }
 
+  iterator insert(iterator pos, const DataType &value) {
+    return Storage.insert(pos, value);
+  }
+  iterator insert(iterator pos, DataType &&value) {
+    return Storage.insert(pos, value);
+  }
+
   reference front() { return Storage.front(); }
   const_reference front() const { return Storage.front(); }