regenerate interface tests

test/fixtures/typescript/corpus/interface.diffA-B.txt

@@ -1,12 +1,11 @@
 (Statements
   (InterfaceDeclaration
+  {+(Empty)+}
   {-(TypeParameters
     {-(TypeParameter
       {-(Identifier)-}
       {-(Empty)-}
       {-(Empty)-})-})-}
-    (Empty)
-  {+(Empty)+}
   { (Identifier)
   ->(Identifier) }
     (ObjectType

test/fixtures/typescript/corpus/interface.diffB-A.txt

@@ -5,7 +5,6 @@
       {+(Identifier)+}
       {+(Empty)+}
       {+(Empty)+})+})+}
-    (Empty)
   {-(Empty)-}
   { (Identifier)
   ->(Identifier) }

test/fixtures/typescript/corpus/interface.parseA.txt

@@ -0,0 +1,22 @@
+(Statements
+  (InterfaceDeclaration
+    (TypeParameters
+      (TypeParameter
+        (Identifier)
+        (Empty)
+        (Empty)))
+    (Identifier)
+    (ObjectType
+      (PropertySignature
+        (Empty)
+        (Empty)
+        (Annotation
+          (LiteralType
+            (TextElement)))
+        (Identifier))
+      (PropertySignature
+        (Empty)
+        (Readonly)
+        (Annotation
+          (TypeIdentifier))
+        (Identifier)))))

test/fixtures/typescript/corpus/interface.parseB.txt

@@ -1,10 +1,6 @@
 (Statements
   (InterfaceDeclaration
-    (TypeParameters
+    (Empty)
-      (TypeParameter
-        (Identifier)
-        (Empty)
-        (Empty)))
     (Identifier)
     (ObjectType
       (PropertySignature