Exclude function name from function type annotations in front end type inference tests.

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

Index: pkg/front_end/testcases/inference/static_method_tear_off.dart.strong.expect
diff --git a/pkg/front_end/testcases/inference/static_method_tear_off.dart.strong.expect b/pkg/front_end/testcases/inference/static_method_tear_off.dart.strong.expect
new file mode 100644
index 0000000000000000000000000000000000000000..83d3854ef5343540996fa27835c8193823880d62
--- /dev/null
+++ b/pkg/front_end/testcases/inference/static_method_tear_off.dart.strong.expect
@@ -0,0 +1,15 @@
+library test;
+import self as self;
+import "dart:core" as core;
+
+class C extends core::Object {
+  constructor •() → void
+    : super core::Object::•()
+    ;
+  static method f(core::String s) → core::int
+    return null;
+}
+static const field (core::String) → core::int v = self::C::f;
+static method main() → dynamic {
+  self::v;
+}