remove reference release builtin and simulate reload

Author: GregoryTravis

distribution/lib/Standard/Base/0.0.0-dev/src/Runtime.enso

@@ -54,9 +54,6 @@ get_stack_trace =
 gc : Nothing
 gc = @Builtin_Method "Runtime.gc"
 
-release_references : Nothing
-release_references = @Builtin_Method "Runtime.release_references"
-
 ## PRIVATE
    ADVANCED
 

engine/runtime/src/main/java/org/enso/interpreter/node/expression/builtin/runtime/ReleaseReferencesNode.java

@@ -321,6 +321,11 @@ public LRUCacheSettings getSettings() {
     return settings;
   }
 
+  /** Public for testing. */
+  public void simulateReloadTestOnly() {
+    reloadDetector.simulateReloadTestOnly();
+  }
+
   private record CacheEntry<M>(File responseData, M metadata, long size, ZonedDateTime expiry) {}
 
   /**

std-bits/base/src/main/java/org/enso/base/cache/LRUCache.java

@@ -40,6 +40,7 @@ private void resetTriggerRef() {
                   """
       import Standard.Base.Runtime.Ref.Ref
       import Standard.Base.Data.Boolean.Boolean
+      import Standard.Base.Nothing.Nothing
 
       type Trigger
           private Value ref:Ref
@@ -49,7 +50,13 @@ private void resetTriggerRef() {
             Trigger.Value ref
 
           get self = self.ref.get
+
+          clear self = self.ref.put Nothing
       """);
       triggerRef = module.invokeMember("eval_expression", "Trigger.new");
     }
+
+    void simulateReloadTestOnly() {
+        triggerRef.invokeMember("clear");
+    }
 }

std-bits/base/src/main/java/org/enso/base/cache/ReloadDetector.java

@@ -169,7 +169,7 @@ add_specs suite_builder =
             with_lru_cache lru_cache action
 
         fake_reload =
-            Runtime.release_references
+            EnsoSecretHelper.getCache.getLRUCache.simulateReloadTestOnly
 
         url0 = base_url_with_slash+'test_download?max-age=16&length=10'
         url1 = base_url_with_slash+'test_download?max-age=16&length=20'