Fix method call type inference with explicit type parameters.

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

Index: pkg/front_end/testcases/inference/method_call_with_type_arguments_instance_method.dart.strong.expect
diff --git a/pkg/front_end/testcases/inference/method_call_with_type_arguments_instance_method.dart.strong.expect b/pkg/front_end/testcases/inference/method_call_with_type_arguments_instance_method.dart.strong.expect
new file mode 100644
index 0000000000000000000000000000000000000000..03ccdb962a40860226a4315cf90c99e688c1131c
--- /dev/null
+++ b/pkg/front_end/testcases/inference/method_call_with_type_arguments_instance_method.dart.strong.expect
@@ -0,0 +1,18 @@
+library test;
+import self as self;
+import "dart:core" as core;
+
+class C extends core::Object {
+  constructor •() → void
+    : super core::Object::•()
+    ;
+  method f() → self::D<dynamic>
+    return null;
+}
+class D<T extends core::Object> extends core::Object {
+  constructor •() → void
+    : super core::Object::•()
+    ;
+}
+static field self::D<core::int> f = new self::C::•().f();
+static method main() → dynamic {}