WIP

Author: Changqing-JING

tests/compiler/issues/2989.ts

@@ -0,0 +1,20 @@
+
+let value: i32 = 0;
+
+function logA(x: i32):void {
+  value = 100;
+}
+
+function logB(x: i32):void {
+  value = 200;
+}
+
+let fn = logA;
+
+function foo(x: i32):i32 {
+  fn = logB;
+  return x;
+}
+
+fn(foo(42));
+assert(value == 100);