closure conversion: Support closures in initializers

pkg/kernel/testcases/closures/closure_in_constructor.dart.expect

+library;
+import self as self;
+import "dart:core" as core;
+import "dart:mock" as mock;
+
+class C1 extends core::Object {
+  field dynamic x;
+  constructor •(dynamic y) → void
+    : self::C1::x = let final mock::Context #context = new mock::Context::•(1) in let dynamic #t1 = #context.[]=(0, y) in new self::Closure#C1##function::•(#context), super core::Object::•()
+    ;
+}
+class C2 extends core::Object {
+  field dynamic x = null;
+  constructor •(dynamic y) → void
+    : super core::Object::•() {
+    final mock::Context #context = new mock::Context::•(1);
+    #context.parent = null;
+    #context.[]=(0, y);
+    this.x = new self::Closure#C2#function#function::•(#context);
+  }
+}
+class Closure#C1##function extends core::Object implements core::Function {
+  field core::String note = "This is temporary. The VM doesn't need closure classes.";
+  field mock::Context context;
+  constructor •(final mock::Context context) → dynamic
+    : self::Closure#C1##function::context = context
+    ;
+  method call() → dynamic {
+    "This is a temporary solution. In the VM, this will become an additional parameter.";
+    final mock::Context #contextParameter = this.{self::Closure#C1##function::context};
+    return core::print("Hello ${#contextParameter.[](0)}");
+  }
+}
+class Closure#C2#function#function extends core::Object implements core::Function {
+  field core::String note = "This is temporary. The VM doesn't need closure classes.";
+  field mock::Context context;
+  constructor •(final mock::Context context) → dynamic
+    : self::Closure#C2#function#function::context = context
+    ;
+  method call() → dynamic {
+    "This is a temporary solution. In the VM, this will become an additional parameter.";
+    final mock::Context #contextParameter = this.{self::Closure#C2#function#function::context};
+    return core::print("Hello ${#contextParameter.[](0)}");
+  }
+}
+static method main() → dynamic {
+  new self::C1::•("hest").x();
+  new self::C2::•("naebdyr").x();
+}