fix variable and run errors

Author: Elektryk-Andrzej

Code/ScriptSystem/Script.cs

@@ -180,6 +180,10 @@ public void Run(RunContext context = RunContext.Unknown, Script? caller = null)
             return null;
         }
 
+        StartTime = DateTime.Now;
+        Context = context;
+        Caller = caller;
+        
         if (ScriptFlagHandler.DoFlagsApproveExecution(this).HasErrored(out var error))
         {
             Executor.Error(error, this);
@@ -188,9 +192,6 @@ public void Run(RunContext context = RunContext.Unknown, Script? caller = null)
 
         RunningScriptsList.Add(this);
         //Profile = new Profile(this);
-        StartTime = DateTime.Now;
-        Context = context;
-        Caller = caller;
         _scriptCoroutine = InternalExecute().Run(
             this, 
             _ => _scriptCoroutine.Kill()

Code/VariableSystem/VariableIndex.cs

@@ -77,7 +77,6 @@ public static void Initialize()
 
     public static void AddGlobalVariable(Variable variable)
     {
-        Script.CheckForVariableNameCollisions(variable, GlobalVariables);
         foreach (var runningScript in Script.RunningScripts)
         {
             Script.CheckForVariableNameCollisions(variable, runningScript.LocalVariables);
@@ -89,8 +88,8 @@ public static void AddGlobalVariable(Variable variable)
 
     public static void RemoveGlobalVariable(Variable variable)
     {
-        GlobalVariables.RemoveAll(existingVar => 
-            existingVar.Name == variable.Name &&
-            existingVar.GetType() == variable.GetType());
+        GlobalVariables.RemoveAll(
+            existingVar => Variable.AreSyntacticallySame(existingVar, variable)
+        );
     }
 }