Fix memory leak in compiler

Reference count is properly handled by string table and usage of
SQObject is ok here, but if we use SQObjectPtr local variable and
compiler error occurs, its destructor is not called because of longjmp.
That leads to incorrectly incremented refcount and memory leak.

squirrel/sqcompiler.cpp

@@ -1869,7 +1869,7 @@ class SQCompiler
         }
     }
 
-    SQObjectPtr generateSurrogateFunctionName()
+    SQObject generateSurrogateFunctionName()
     {
         const SQChar * fileName = (sq_type(_sourcename) == OT_STRING) ? _stringval(_sourcename) : _SC("unknown");
         int lineNum = int(_lex._currentline);
@@ -1884,7 +1884,7 @@ class SQCompiler
     void FunctionExp(SQInteger ftype,bool lambda = false)
     {
         Lex();
-        SQObjectPtr functionName = (_token == TK_IDENTIFIER) ? Expect(TK_IDENTIFIER) : generateSurrogateFunctionName();
+        SQObject functionName = (_token == TK_IDENTIFIER) ? Expect(TK_IDENTIFIER) : generateSurrogateFunctionName();
         Expect(_SC('('));
 
         CreateFunction(functionName, lambda);