Fix: Address a few benign memory leaks

This patch is the result of static analysis identifying a number of
memory leaks. The leaks are all benign as they are a result of not
deallocating memory in the desctructor. The fix still has value as it
removes false positives in the static analysis.

src/mem/cache/mshr.cc

@@ -460,4 +460,6 @@ MSHR::print(std::ostream &os, int verbosity, const std::string &prefix) const
 
 MSHR::~MSHR()
 {
+    delete[] targets;
+    delete[] deferredTargets;
 }

src/mem/cache/tags/fa_lru.cc

@@ -98,6 +98,14 @@ FALRU::FALRU(unsigned _blkSize, unsigned _size, unsigned hit_latency)
     //assert(check());
 }
 
+FALRU::~FALRU()
+{
+    if (numCaches)
+        delete[] cacheBoundaries;
+
+    delete[] blks;
+}
+
 void
 FALRU::regStats(const string &name)
 {

src/mem/cache/tags/fa_lru.hh

@@ -156,6 +156,7 @@ public:
      * @param hit_latency The hit latency of the cache.
      */
     FALRU(unsigned blkSize, unsigned size, unsigned hit_latency);
+    ~FALRU();
 
     /**
      * Register the stats for this object.

src/mem/cache/tags/iic.cc

@@ -160,6 +160,7 @@ IIC::~IIC()
     delete [] dataStore;
     delete [] tagStore;
     delete [] sets;
+    delete [] dataBlks;
 }
 
 /* register cache stats */