Fix constructor invocation type inference.

pkg/front_end/testcases/inference/infer_types_on_generic_instantiations_5.dart.strong.expect

Index: pkg/front_end/testcases/inference/infer_types_on_generic_instantiations_5.dart.strong.expect
diff --git a/pkg/front_end/testcases/inference/infer_types_on_generic_instantiations_5.dart.strong.expect b/pkg/front_end/testcases/inference/infer_types_on_generic_instantiations_5.dart.strong.expect
new file mode 100644
index 0000000000000000000000000000000000000000..72d018aadff9e5041f9a7f0e9df4dfea30b32f1a
--- /dev/null
+++ b/pkg/front_end/testcases/inference/infer_types_on_generic_instantiations_5.dart.strong.expect
@@ -0,0 +1,35 @@
+library test;
+import self as self;
+import "dart:core" as core;
+
+abstract class I<E extends core::Object> extends core::Object {
+  constructor •() → void
+    : super core::Object::•()
+    ;
+  abstract method m(dynamic a, dynamic f) → core::String;
+}
+abstract class A<E extends core::Object> extends core::Object implements self::I<self::A::E> {
+  const constructor •() → void
+    : super core::Object::•()
+    ;
+  abstract method m(dynamic a, dynamic f) → core::String;
+}
+abstract class M extends core::Object {
+  final field core::int y = 0;
+  constructor •() → void
+    : super core::Object::•()
+    ;
+}
+class B<E extends core::Object> extends self::A<self::B::E> implements self::M {
+  const constructor •() → void
+    : super self::A::•()
+    ;
+  get y() → core::int
+    return 0;
+  method m(dynamic a, dynamic f) → dynamic {}
+}
+static method foo() → dynamic {
+  core::int y = new self::B::•<dynamic>().m(null, null);
+  core::String z = new self::B::•<dynamic>().m(null, null);
+}
+static method main() → dynamic {}