!10 fix: 比较运算符支持返回 boolean 类型值

Merge pull request !10 from zhangxun/bugfix/fix-binary-operator-not-supports-boolean-result

src/main/java/org/jcnc/snow/compiler/semantic/analyzers/expression/BinaryExpressionAnalyzer.java

@@ -67,9 +67,9 @@ public class BinaryExpressionAnalyzer implements ExpressionAnalyzer<BinaryExpres
                 Type wide = Type.widen(left, right);
                 if (wide == null) wide = BuiltinType.INT; // 容错降级为 int
 
-                // 若为比较运算符，统一返回 int 类型作为布尔值表示
+                // 若为比较运算符，统一返回 boolean 类型作为布尔值表示
                 if ("< <= > >= == !=".contains(op)) {
-                    return BuiltinType.INT;
+                    return BuiltinType.BOOLEAN;
                 }
 
                 return wide;