Remove uses of getEnclosingCallable

ql/lib/semmle/go/security/InsecureRandomnessCustomizations.qll

@@ -72,9 +72,7 @@ module InsecureRandomness {
    */
   class PasswordFnSink extends Sink {
     PasswordFnSink() {
-      this.getEnclosingCallable()
-          .getName()
-          .regexpMatch("(?i).*(gen(erate)?|salt|make|mk)Password.*")
+      this.getRoot().(FuncDef).getName().regexpMatch("(?i).*(gen(erate)?|salt|make|mk)Password.*")
     }
 
     override string getKind() { result = "a password-related function" }

ql/lib/semmle/go/security/UnsafeUnzipSymlinkCustomizations.qll

@@ -86,7 +86,7 @@ module UnsafeUnzipSymlink {
    * Gets a `CallNode` that may call `node`'s enclosing function.
    */
   private DataFlow::CallNode getACaller(DataFlow::CallNode node) {
-    result.getACallee() = node.getEnclosingCallable()
+    result.getACallee().getFuncDef() = node.getRoot()
   }
 
   /**

ql/src/RedundantCode/RedundantRecover.ql

@@ -20,7 +20,7 @@ predicate isDeferred(DataFlow::CallNode call) {
 from DataFlow::CallNode recoverCall, FuncDef f, string msg
 where
   recoverCall.getTarget() = Builtin::recover() and
-  f = recoverCall.getEnclosingCallable().getFuncDef() and
+  f = recoverCall.getRoot() and
   (
     isDeferred(recoverCall) and
     msg = "Deferred calls to 'recover' have no effect."

ql/src/Security/CWE-338/InsecureRandomness.ql

@@ -24,7 +24,7 @@ where
     sink =
       min(DataFlow::PathNode sink2, int line |
         cfg.hasFlowPath(_, sink2) and
-        sink2.getNode().getEnclosingCallable() = sink.getNode().getEnclosingCallable() and
+        sink2.getNode().getRoot() = sink.getNode().getRoot() and
         sink2.hasLocationInfo(_, line, _, _, _)
       |
         sink2 order by line