expressions are now statements

test/cases/call_site/field_basic.tst

@@ -1,8 +0,0 @@
-message.self
--- -- --
-s(:expressions,
-  s(:field_access,
-    s(:receiver,
-      s(:name, :message)),
-    s(:field,
-      s(:name, :self))))

test/cases/return_statement/return_int.tst

@@ -1,5 +1,4 @@
 return 42
 -- -- --
-s(:expressions, 
-  s(:return, 
-    s(:int,  42)))
+s(:return,
+  s(:int, 42))

test/cases/return_statement/return_string.tst

@@ -1,5 +1,4 @@
 return "hello"
 -- -- --
-s(:expressions, 
-  s(:return, 
-    s(:string,  "hello")))
+s(:return,
+  s(:string, "hello"))

test/cases/return_statement/return_variable.tst

@@ -1,5 +1,4 @@
 return foo
 -- -- --
-s(:expressions, 
-  s(:return, 
-    s(:name,  :foo)))
+s(:return,
+  s(:name, :foo))