fixed failing test after "cleanup"

bin/tests/import1.slime

@@ -0,0 +1,4 @@
+(define a 10)
+
+(define (get-a-1)
+  a)

bin/tests/import2.slime

@@ -0,0 +1,8 @@
+(import "tests/import1.slime")
+
+
+(define (set-a-2 s)
+  (set! a s))
+
+(define (get-a-2)
+  a)

bin/tests/singular_imports.slime

@@ -1,10 +1,10 @@
-(import "import1.slime")
+(import "tests/import1.slime")
 
 (assert (= a 10))
 (assert (= (get-a-1) 10))
 
 
-(import "import2.slime")
+(import "tests/import2.slime")
 
 (assert (= a 10))
 (assert (= (get-a-1) 10))