Add testing configuration for Fasta.

pkg/front_end/test/fasta/testing.json

Index: pkg/front_end/test/fasta/testing.json
diff --git a/pkg/front_end/test/fasta/testing.json b/pkg/front_end/test/fasta/testing.json
index 7e99faeea5c02bdecc817d6e2e08a9f3178fe6fa..e680f7c349713b34e119cccbf21e9d4b299df8be 100644
--- a/pkg/front_end/test/fasta/testing.json
+++ b/pkg/front_end/test/fasta/testing.json
@@ -150,6 +150,7 @@
     },
 
     {
+      "note": "Tests dart2js fully, excluding browser-only tests.",
       "name": "dart2js",
       "kind": "test_dart",
       "arch": "x64",
@@ -160,6 +161,35 @@
         "-cdart2js -rd8 --exclude-suite=observatory_ui",
         "-cdart2js -rd8 dart2js_extra dart2js_native"
       ]
+    },
+
+    {
+      "note": "Minimal testing of Fasta.",
+      "name": "fasta_min",
+      "kind": "test_dart",
+      "arch": "x64",
+      "mode": "release",
+      "common": "--time -pcolor --report -ax64 -mrelease",
+      "command-lines": [
+        "-t240 pkg/(kernel|front_end|fasta) --checked",
+        "-t240 dart2js/analyze_test",
+        "-cdartk -rvm"
+      ]
+    },
+
+    {
+      "note": "Tests Fasta fully, including the above dart2js tests.",
+      "name": "fasta_max",
+      "kind": "test_dart",
+      "arch": "x64",
+      "mode": "release",
+      "common": "--dart2js-batch --time -pcolor --report -ax64 -mrelease",
+      "command-lines": [
+        "-t240 --checked pkg/(kernel|front_end|fasta) dart2js",
+        "-cdartk -rvm",
+        "-cdart2js -rd8 --exclude-suite=observatory_ui",
+        "-cdart2js -rd8 dart2js_extra dart2js_native"
+      ]
     }
   ],