Add missing test cases for generics

src/pragmas.js

@@ -29,9 +29,7 @@ export function extractPragmas(text: string): Pragma[] {
             },
         };
 
-        if (pragma) {
-            pragmas.push(pragma);
-        }
+        pragmas.push(pragma);
     }
 
     return pragmas;

tests/samples/generics.js

@@ -7,4 +7,8 @@ type X = {
     a: A<string, boolean>,
 };
 
-export {X};
+type Y = {
+    a: A<number, X>,
+}
+
+export {X, Y};

tests/samples/generics.json

@@ -16,6 +16,23 @@
                 "value": {"kind": "reference", "to": ["generics", "A", "string", "boolean"]},
                 "required": true
             }]
+        },
+        {
+            "id": ["generics", "A", "f64", "X"],
+            "kind": "record",
+            "fields": [
+                {"name": "t", "value": {"kind": "number", "repr": "f64"}, "required": true},
+                {"name": "k", "value": {"kind": "reference", "to": ["generics", "X"]}, "required": true}
+            ]
+        },
+        {
+            "id": ["generics", "Y"],
+            "kind": "record",
+            "fields": [{
+                "name": "a",
+                "value": {"kind": "reference", "to": ["generics", "A", "f64", "X"]},
+                "required": true
+            }]
         }
     ]
 }