fix: super calls (#2843)

* fix super call in object.js

the super.operate.call syntax doesn't pass in the `this` argument.

The code before the classes #2813 PR was:

```js
Node.prototype.operate.call(this, op, right)
```

and the code was incorrectly transformed into

```js
super.operate.call(op, right);
```

* directly call super methods

instead of doing `super.method.call(this, ...args)`

* chore: add test cases

* chore: add eos

---------

Co-authored-by: Angelo Verlain <geoangercola@gmail.com>

lib/nodes/object.js

@@ -127,7 +127,7 @@ module.exports = class Object extends Node {
       case '!=':
         return this.operate('==', right).negate();
       default:
-        return super.operate.call(op, right);
+        return super.operate(op, right);
     }
   };
 

lib/visitor/sourcemapper.js

@@ -64,7 +64,7 @@ module.exports = class SourceMapper extends Compiler {
    */
 
   compile() {
-    var css = super.compile.call(this)
+    var css = super.compile()
       , out = this.basename + '.map'
       , url = this.normalizePath(this.dest
         ? join(this.dest, out)
@@ -156,7 +156,7 @@ module.exports = class SourceMapper extends Compiler {
    */
 
   visitLiteral(lit) {
-    var val = super.visitLiteral.call(this, lit)
+    var val = super.visitLiteral(lit)
       , filename = this.normalizePath(lit.filename)
       , indentsRe = /^\s+/
       , lines = val.split('\n');

test/cases/is.a.obj.operator.css

@@ -0,0 +1,3 @@
+body {
+  padding: 5px;
+}

test/cases/is.a.obj.operator.styl

@@ -0,0 +1,13 @@
+// https://github.com/stylus/stylus/pull/2840#issuecomment-1806769376
+IS_A_OBJECT = {
+    height: 10px
+}
+
+add(a, b)
+  if IS_A_OBJECT is a 'object'
+    a + b
+  else
+    error('is a operator not work as expect')
+
+body
+  padding s('%spx', add(1, 4))

test/cases/regression.2820.css

@@ -0,0 +1,3 @@
+.main {
+  color: #f00;
+}

test/cases/regression.2820.styl

@@ -0,0 +1,18 @@
+// https://github.com/stylus/stylus/issues/2820#issue-1876098425
+$JIG_CONFIG = {
+	color: #f00
+}
+$jig---config ?= null
+if !($jig---config is a 'object')
+	if jig---config is defined
+		$jig---config = jig---config
+	else if $JIG_CONFIG is defined
+		$jig---config = $JIG_CONFIG
+	else if JIG_CONFIG is defined
+		$jig---config = JIG_CONFIG
+
+if !($jig---config is a 'object')
+	error('jig:globals | jig config is undefined or not a hash')
+
+.main
+	color: $jig---config.color