[esnext] Fix various callsites to use is_resumable, not is_generator

test/mjsunit/debug-generator-break.js

Index: test/mjsunit/debug-generator-break.js
diff --git a/test/mjsunit/ignition/debug-break.js b/test/mjsunit/debug-generator-break.js
similarity index 78%
copy from test/mjsunit/ignition/debug-break.js
copy to test/mjsunit/debug-generator-break.js
index 8237d4a55292a5f14e59c9d0a36ed86812e7fd09..34ed82c3764cb4a39a6e7b555665648abdec7724 100644
--- a/test/mjsunit/ignition/debug-break.js
+++ b/test/mjsunit/debug-generator-break.js
@@ -22,23 +22,21 @@ function listener(event, exec_state, event_data, data) {
 
 Debug.setListener(listener);
 
-function g() {
-  throw 1;
+function* g() {
+  yield 1;
 }
 
-function f() {
-  try {
-    g();                         // B1
-  } catch (e) {}
+function* f() {
+  yield* g();                    // B1
   assertEquals(2, break_count);  // B2
   return 1;                      // B3
 }
 
-Debug.setBreakPoint(f, 2, 0);
-Debug.setBreakPoint(f, 4, 1);
-Debug.setBreakPoint(f, 5, 1);
+Debug.setBreakPoint(f, 1);
+Debug.setBreakPoint(f, 2);
+Debug.setBreakPoint(f, 3);
 
-f();
+for (let _ of f()) { }
 
 assertEquals(3, break_count);
 assertNull(exception);