Convert closures in all initializers, and share the context between them.

pkg/kernel/testcases/closures_initializers/initializers.dart

Index: pkg/kernel/testcases/closures_initializers/initializers.dart
diff --git a/pkg/kernel/testcases/closures_initializers/initializers.dart b/pkg/kernel/testcases/closures_initializers/initializers.dart
index 82d9285e83d55774271d01ff47a3821ae94fd7e1..8ccc3c4ae55dc83e1a244d6b45cce8569726953e 100644
--- a/pkg/kernel/testcases/closures_initializers/initializers.dart
+++ b/pkg/kernel/testcases/closures_initializers/initializers.dart
@@ -19,6 +19,21 @@ class A {
   A(X i) : foo = ((() => i)());
 }
 
+// Closure in super initializer.
+//
+class S extends A {
+  S(X i) : super((() => i)());
+}
+
+// Closure in redirecting constructor.
+//
+class S2 {
+  X foo;
+  S2(this.foo);
+
+  S2.wat(X i) : this((() => i)());

[Dmitry Stefantsov, 2017/07/13 07:19:53]

How this test case is different from the one for the constructor of [B] below?

[sjindel, 2017/07/13 11:34:05]

It wasn't -- I fixed this in patch set 2 by changing the argument extraction
method to extract arguments from field initializers instead, based on whether
the field name ended in "_li".

+}
+
 // Closure in local initializer.
 //
 class B {
@@ -32,4 +47,8 @@ main() {
   a.foo; // To prevent dartanalyzer from marking [a] as unused.
   B b = new B(new X());
   b.foo;
+  S s = new S(new X());
+  s.foo;
+  S2 s2 = new S2(new X());
+  s2.foo;
 }