Fix two deallocation bugs identified by Coverity Prevent....

src/compilation-cache.cc

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 45 matching lines @@
 // this class as a base class. A sub-cache contains a compilation cache tables
 // for each generation of the sub-cache. As the same source code string has
 // different compiled code for scripts and evals. Internally, we use separate
 // sub-caches to avoid getting the wrong kind of result when looking up.
 class CompilationSubCache {
  public:
   explicit CompilationSubCache(int generations): generations_(generations) {
     tables_ = NewArray<Object*>(generations);
   }
 
+  ~CompilationSubCache() { DeleteArray(tables_); }
+
   // Get the compilation cache tables for a specific generation.
   Handle<CompilationCacheTable> GetTable(int generation);
 
   // Age the sub-cache by evicting the oldest generation and creating a new
   // young generation.
   void Age();
 
   // GC support.
   void Iterate(ObjectVisitor* v);
 
@@ skipping 402 matching lines @@
 }
 
 
 void CompilationCache::Disable() {
   enabled = false;
   Clear();
 }
 
 
 } }  // namespace v8::internal