fix docs, fix deprecations

ruby/ql/lib/codeql/ruby/ast/Constant.qll

@@ -168,7 +168,7 @@ class ConstantWriteAccess extends ConstantAccess {
   override string getAPrimaryQlClass() { result = "ConstantWriteAccess" }
 
   /**
-   * Gets the fully qualified name for this constant, based on the context in
+   * Gets a fully qualified name for this constant, based on the context in
    * which it is defined.
    *
    *  For example, given

ruby/ql/lib/codeql/ruby/frameworks/ActiveRecord.qll

@@ -278,7 +278,7 @@ private class ActiveRecordModelFinderCall extends ActiveRecordModelInstantiation
   ActiveRecordModelFinderCall() {
     call = this.asExpr().getExpr() and
     recv = getUltimateReceiver(call) and
-    resolveConstant(recv) = cls.getQualifiedName() and
+    resolveConstant(recv) = cls.getAQualifiedName() and
     call.getMethodName() = finderMethodName()
   }
 

ruby/ql/src/queries/analysis/Definitions.ql

@@ -78,7 +78,7 @@ ConstantWriteAccess definitionOf(string fqn) {
   fqn = resolveConstant(_) and
   result =
     min(ConstantWriteAccess w, Location l |
-      w.getQualifiedName() = fqn and l = w.getLocation()
+      w.getAQualifiedName() = fqn and l = w.getLocation()
     |
       w
       order by