Merge branch 'avalluri-leaks'

* avalluri-leaks:
  whitespace fix
  memory leak improvements - delete at end of scope
  CCache: Fix typo in null check
  CCache: Fix memory/file descriptor leaks
  scilab.cxx: Fix memory leaks
  Fix leaked file descriptor
  Lua: Fix possible memory leaks
  go.cxx: Fix use of a freed variable

Closes #710
Closes #712
Closes #713
Closes #715
Closes #716

Source/Modules/go.cxx

@@ -4176,7 +4176,6 @@ private:
 
     Wrapper *dummy = NewWrapper();
     emit_attach_parmmaps(parms, dummy);
-    DelWrapper(dummy);
 
     Swig_typemap_attach_parms("gotype", parms, NULL);
     Swig_typemap_attach_parms("imtype", parms, NULL);
@@ -4233,6 +4232,8 @@ private:
     Swig_typemap_attach_parms("goin", parms, dummy);
     Swig_typemap_attach_parms("goargout", parms, dummy);
 
+    DelWrapper(dummy);
+
     if (!is_ignored) {
       // We use an interface to see if this method is defined in Go.
       Printv(f_go_wrappers, "type ", interface_name, " interface {\n", NULL);

Source/Modules/lua.cxx

@@ -856,6 +856,9 @@ public:
     //Printf(stdout,"Swig_overload_dispatch %s %s '%s' %d\n",symname,wname,dispatch,maxargs);
 
     if (!luaAddSymbol(lua_name, n)) {
+      DelWrapper(f);
+      Delete(dispatch);
+      Delete(tmp);
       return SWIG_ERROR;
     }
 

Source/Modules/scilab.cxx

@@ -326,6 +326,7 @@ public:
     bool isLastOverloaded = isOverloaded && !Getattr(node, "sym:nextSibling");
 
     if (!isOverloaded && !addSymbol(functionName, node)) {
+      DelWrapper(wrapper);
       return SWIG_ERROR;
     }
 
@@ -633,7 +634,10 @@ public:
 
       /* Add function to builder table */
       addFunctionToScilab(scilabSetFunctionName, setFunctionName);
+
+      DelWrapper(setFunctionWrapper);
     }
+    DelWrapper(getFunctionWrapper);
 
     return SWIG_OK;
   }