Basic import syntax.

test/module/cyclic_import/a.wren

@@ -3,7 +3,7 @@ IO.print("start a")
 
 var A = "a value"
 IO.print("a defined ", A)
-var B = "b".import_("B")
+import "b" for B
 IO.print("a imported ", B)
 
 IO.print("end a")

test/module/cyclic_import/b.wren

@@ -3,7 +3,7 @@ IO.print("start b")
 
 var B = "b value"
 IO.print("b defined ", B)
-var A = "a".import_("A")
+import "a" for A
 IO.print("b imported ", A)
 
 IO.print("end b")

test/module/cyclic_import/cyclic_import.wren

@@ -1,4 +1,4 @@
-var A = "a".import_("A")
+import "a" for A
 
 // Shared module should only run once:
 // expect: start a