Allow repeated analyis with warning

Author: jonpalmisc

Plugin/Commands.cpp

@@ -23,9 +23,15 @@ void Commands::analyzeStructures(BinaryViewRef bv)
 {
     if (GlobalState::hasFlag(bv, Flag::DidRunWorkflow)
         || GlobalState::hasFlag(bv, Flag::DidRunStructureAnalysis)) {
-        BinaryNinja::ShowMessageBox("Error",
-            "Structure analysis has already been performed on this binary.");
-        return;
+        auto result = BinaryNinja::ShowMessageBox("Error",
+            "Structure analysis has already been performed fon this binary. "
+            "Repeated analysis may cause unexpected behavior.* Continue?\n\n"
+            "*If you undid analysis, this message can be safely ignored.",
+            BNMessageBoxButtonSet::YesNoButtonSet,
+            BNMessageBoxIcon::QuestionIcon);
+
+        if (result != BNMessageBoxButtonResult::YesButton)
+            return;
     }
 
     SharedAnalysisInfo info;