Merge remote-tracking branch 'upstream/rc/1.20' into merge/rc/1.20

javascript/ql/test/query-tests/Declarations/DeadStoreOfProperty/accessors.js

@@ -0,0 +1,7 @@
+class C {
+  static get foo() {} // OK
+  static set foo(v) {} // OK
+  
+  get bar() {} // OK
+  set bar(v) {} // OK
+}

javascript/ql/test/query-tests/Declarations/UnusedVariable/thisparam.ts

@@ -0,0 +1,11 @@
+import { Foo, Bar, Baz } from "somewhere"; // OK
+
+export function f(this: Foo) {}
+
+export class C {
+  m(this: Bar) {}
+}
+
+export default {
+  foo(this: Baz) {}  
+}