Add Fasta tests.

pkg/fasta/test/implicit_this.dart.outline.expect

Index: pkg/fasta/test/implicit_this.dart.outline.expect
diff --git a/pkg/fasta/test/implicit_this.dart.outline.expect b/pkg/fasta/test/implicit_this.dart.outline.expect
new file mode 100644
index 0000000000000000000000000000000000000000..bff63cc94bd98751321ce5e5c7b6a2a3d37c077d
--- /dev/null
+++ b/pkg/fasta/test/implicit_this.dart.outline.expect
@@ -0,0 +1,20 @@
+library;
+import self as self;
+import "dart:core" as core;
+
+class C extends core::Object {
+  constructor •() → void
+    ;
+  method m() → dynamic
+    ;
+  method testC() → dynamic
+    ;
+}
+class D extends self::C {
+  constructor •() → void
+    ;
+  method testD() → dynamic
+    ;
+}
+static method main() → dynamic
+  ;