InputConfigDialog: Don't show "..." for complicated expressions

Just show the actual expression. We need to do a bit of mangling
here as wx has no way to turn off mnemonics parsing, so do that
as well.

Source/Core/DolphinWX/Src/InputConfigDiag.cpp

@@ -240,10 +240,9 @@ void GamepadPage::UpdateGUI()
 			, e = (*g)->control_buttons.end();
 		for (; i!=e; ++i) {
 			ControllerInterface::ControlReference *r = (*i)->control_reference;
-			if (r->IsComplicated())
-				(*i)->SetLabel("...");
-			else
-				(*i)->SetLabel(StrToWxStr((*i)->control_reference->expression));
+			wxString expr = StrToWxStr((*i)->control_reference->expression);
+			expr.Replace("&", "&&");
+			(*i)->SetLabel(expr);
 		}
 
 		// cboxes

Source/Core/InputCommon/Src/ControllerInterface/ControllerInterface.h

@@ -73,13 +73,6 @@ public:
 				return 0;
 		}
 
-		bool IsComplicated() {
-			if (parsed_expression)
-				return parsed_expression->is_complicated;
-			else
-				return false;
-		}
-
 	protected:
 		ControlReference(const bool _is_input) : range(1), is_input(_is_input), parsed_expression(NULL) {}
 		ciface::ExpressionParser::Expression *parsed_expression;

Source/Core/InputCommon/Src/ControllerInterface/ExpressionParser.cpp

@@ -210,7 +210,6 @@ public:
 	virtual ControlState GetValue() { return 0; }
 	virtual void SetValue(ControlState state) {}
 	virtual int CountNumControls() { return 0; }
-	virtual bool IsComplicated() { return false; }
 	virtual operator std::string() { return ""; }
 };
 
@@ -237,11 +236,6 @@ public:
 		return 1;
 	}
 
-	virtual bool IsComplicated()
-	{
-		return false;
-	}
-
 	virtual operator std::string()
 	{
 		return "`" + (std::string)qualifier + "`";
@@ -293,11 +287,6 @@ public:
 		return lhs->CountNumControls() + rhs->CountNumControls();
 	}
 
-	virtual bool IsComplicated()
-	{
-		return true;
-	}
-
 	virtual operator std::string()
 	{
 		return OpName(op) + "(" + (std::string)(*lhs) + ", " + (std::string)(*rhs) + ")";
@@ -345,11 +334,6 @@ public:
 		return inner->CountNumControls();
 	}
 
-	virtual bool IsComplicated()
-	{
-		return true;
-	}
-
 	virtual operator std::string()
 	{
 		return OpName(op) + "(" + (std::string)(*inner) + ")";
@@ -539,7 +523,6 @@ Expression::Expression(ExpressionNode *node_)
 {
 	node = node_;
 	num_controls = node->CountNumControls();
-	is_complicated = node->IsComplicated();
 }
 
 Expression::~Expression()

Source/Core/InputCommon/Src/ControllerInterface/ExpressionParser.h

@@ -51,7 +51,6 @@ public:
 	ControlState GetValue();
 	void SetValue (ControlState state);
 	int num_controls;
-	bool is_complicated;
 	ExpressionNode *node;
 };