Perform type inference on constructor field initializer expressions.

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

Index: pkg/front_end/testcases/inference/field_initializer_context_implicit.dart.strong.expect
diff --git a/pkg/front_end/testcases/inference/field_initializer_context_implicit.dart.strong.expect b/pkg/front_end/testcases/inference/field_initializer_context_implicit.dart.strong.expect
new file mode 100644
index 0000000000000000000000000000000000000000..dc848b7862ad6364877243955ee7f76547ba287e
--- /dev/null
+++ b/pkg/front_end/testcases/inference/field_initializer_context_implicit.dart.strong.expect
@@ -0,0 +1,19 @@
+library test;
+import self as self;
+import "dart:core" as core;
+
+class C extends core::Object implements self::B {
+  final field core::int x;
+  constructor •() → void
+    : self::C::x = self::f<core::int>(), super core::Object::•()
+    ;
+}
+abstract class B extends core::Object {
+  default constructor •() → void
+    : super core::Object::•()
+    ;
+  abstract get x() → core::int;
+}
+static method f<T extends core::Object>() → self::f::T
+  return null;
+static method main() → dynamic {}