fix(es/compat): Handle PrivateName in logical_assignments (#7958)

**Related issue:**

 - Closes #7956

crates/swc/tests/fixture/issues-7xxx/7956/input/1/.swcrc

@@ -0,0 +1,10 @@
+{
+    "jsc": {
+        "parser": {
+            "syntax": "ecmascript"
+        }
+    },
+    "env": {
+        "targets": "chrome 74"
+    }
+}

crates/swc/tests/fixture/issues-7xxx/7956/input/1/index.js

@@ -0,0 +1,20 @@
+class A {
+    #a;
+    b() {
+        this.#a ||= 1;
+    }
+    c(x) {
+        x.#a ||= 1;
+    }
+    log() {
+        console.log(this.#a);
+    }
+}
+
+const x = new A();
+x.b();
+x.log();
+
+const y = new A();
+y.c(y);
+y.log();

crates/swc/tests/fixture/issues-7xxx/7956/output/1/index.js

@@ -0,0 +1,19 @@
+class A {
+    #a;
+    b() {
+        this.#a || (this.#a = 1);
+    }
+    c(x) {
+        var _x;
+        (_x = x).#a || (_x.#a = 1);
+    }
+    log() {
+        console.log(this.#a);
+    }
+}
+const x = new A();
+x.b();
+x.log();
+const y = new A();
+y.c(y);
+y.log();

crates/swc_ecma_transforms_compat/src/es2021/logical_assignments.rs

@@ -123,9 +123,6 @@ impl VisitMut for Operators {
                     };
 
                     let (left_prop, right_prop) = match m.prop.take() {
-                        MemberProp::PrivateName(_) => {
-                            unreachable!("private should be removed by class_properties")
-                        }
                         MemberProp::Computed(c) => {
                             let (left, right) = self.memorize_prop(c);
                             (left.into(), right.into())