Adjust expectations for parameterized closures to match front_end behavior.

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

Index: pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart.strong.expect
diff --git a/pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart.strong.expect b/pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart.strong.expect
new file mode 100644
index 0000000000000000000000000000000000000000..28cb7761861820d05d89254d4246308c0fdb9075
--- /dev/null
+++ b/pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart.strong.expect
@@ -0,0 +1,60 @@
+library test;
+import self as self;
+import "dart:core" as core;
+
+static method main() → void {
+  {
+    function f(core::int x) → core::String
+      return null;
+    (core::int) → core::String v = f;
+    v = (core::int x) → core::String => null;
+    v = (core::int x) → core::String => "hello";
+    v = (core::String x) → core::String => "hello";
+    v = (core::int x) → core::int => 3;
+    v = (core::int x) → core::String {
+      return 3;
+    };
+  }
+  {
+    function f(core::int x) → core::String
+      return null;
+    (core::int) → core::String v = f;
+    v = (core::int x) → core::String => null;
+    v = (core::int x) → core::String => "hello";
+    v = (core::int x) → core::int => 3;
+    v = (core::int x) → core::String {
+      return 3;
+    };
+    v = (core::int x) → core::String {
+      return x;
+    };
+  }
+  {
+    function f(core::int x) → core::List<core::String>
+      return null;
+    (core::int) → core::List<core::String> v = f;
+    v = (core::int x) → core::List<core::String> => null;
+    v = (core::int x) → core::List<core::String> => <core::String>["hello"];
+    v = (core::String x) → core::List<core::String> => <core::String>["hello"];
+    v = (core::int x) → core::List<core::String> => <core::String>[3];
+    v = (core::int x) → core::List<core::String> {
+      return <core::String>[3];
+    };
+  }
+  {
+    function int2int(core::int x) → core::int
+      return null;
+    function int2String(core::int x) → core::String
+      return null;
+    function string2String(core::String x) → core::String
+      return null;
+    (core::int) → core::int x = int2int;
+    x = (core::int x) → core::int => x;
+    x = (core::int x) → core::int => x.{core::num::+}(1);
+    (core::int) → core::String y = int2String;
+    y = (core::int x) → core::int => x;
+    y = (core::int x) → core::String => x.substring(3);
+    (core::String) → core::String z = string2String;
+    z = (core::String x) → core::String => x.{core::String::substring}(3);
+  }
+}