Update astutils.cpp

Author: chrchr-github

lib/astutils.cpp

@@ -2120,7 +2120,8 @@ bool isWithoutSideEffects(const Token* tok, bool checkArrayAccess, bool checkRef
         tok = tok->astOperand2();
     if (tok && tok->varId()) {
         const Variable* var = tok->variable();
-        return var && ((!var->isClass() && (checkReference || !var->isReference())) || var->isPointer() || (checkArrayAccess ? var->isStlType() && !var->isStlType(CheckClass::stl_containers_not_const) : var->isStlType()));
+        return var && ((!var->isClass() && (checkReference || !var->isReference())) || var->isPointer() ||
+                       (checkArrayAccess ? var->isArray() || (var->isStlType() && !var->isStlType(CheckClass::stl_containers_not_const)) : var->isStlType()));
     }
     return true;
 }