BaseTools/VfrCompile: Avoid freeing memory with mismatched functions

Memory allocated by operator new[] should be freed using delete[] to avoid
possible memory leak.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

BaseTools/Source/C/VfrCompile/VfrError.cpp

@@ -2,7 +2,7 @@
   
   VfrCompiler error handler.
 
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2016, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials                          
 are licensed and made available under the terms and conditions of the BSD License         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -145,7 +145,7 @@ SVfrFileScopeRecord::~SVfrFileScopeRecord (
   )
 {
   if (mFileName != NULL) {
-    delete mFileName;
+    delete[] mFileName;
   }
 }