Isolate Value.extractHint to set proper name on watch

However does not enable VSCode Add to Watch inside Watch section

Author: yuxiaomao

hld/Eval.hx

@@ -91,15 +91,10 @@ class Eval {
 	public function eval( expr : String ) : Value {
 		if( expr == null || expr == "" )
 			return null;
-		var exprs = expr.split(":");
-		var hint = HNone;
-		if( exprs.length > 1 ) {
-			hint = Value.parseHint(exprs.pop()); // content after the last ":" is considered as a display hint
-			expr = exprs.join(":");
-		}
-		var expr = try parser.parseString(expr) catch( e : hscript.Expr.Error ) throw hscript.Printer.errorToString(e);
+		var ext = Value.extractHint(expr);
+		var expr = try parser.parseString(ext.expr) catch( e : hscript.Expr.Error ) throw hscript.Printer.errorToString(e);
 		var v = evalExpr(expr);
-		v.hint = hint;
+		v.hint = ext.hint;
 		// additional convert based on hint
 		v = makeValueWithHint(v);
 		return v;

hld/Value.hx

@@ -50,6 +50,16 @@ enum Hint {
 
 	// --- static ---
 
+	public static inline function extractHint( expr : String ) : { expr : String, hint : Hint } {
+		var exprs = expr.split(":");
+		var hint = HNone;
+		if( exprs.length > 1 ) {
+			hint = Value.parseHint(exprs.pop()); // content after the last ":" is considered as a display hint
+			expr = exprs.join(":");
+		}
+		return { expr : expr, hint : hint };
+	}
+
 	public static function parseHint( s : String ) : Hint {
 		if( s == "h" )
 			return HHex;

src/HLAdapter.hx

@@ -1087,7 +1087,8 @@ class HLAdapter extends DebugSession {
 				};
 			} else {
 				var value = dbg.getValue(args.expression);
-				var v = makeVar("", value);
+				var ext = hld.Value.extractHint(args.expression);
+				var v = makeVar(ext.expr, value, ext.expr);
 				response.body = {
 					result : v.value,
 					type : v.type,