feat: migrate unique parameter name

Author: robert-hebel-sb

packages/apidom-ls/src/config/openapi/parameter/lint/unique-name.ts

@@ -9,7 +9,7 @@ const parametersTypeLint: LinterMeta = {
   source: 'apilint',
   message: 'Name must be unique among all parameters',
   severity: DiagnosticSeverity.Error,
-  linterFunction: 'apilintPropertyUniqueValue',
+  linterFunction: 'apilintPropertyUniqueSiblingValue',
   linterParams: [['parameters'], 'name'],
   marker: 'key',
   markerTarget: 'name',

packages/apidom-ls/src/services/validation/linter-functions.ts

@@ -795,6 +795,24 @@ export const standardLinterfunctions: FunctionItem[] = [
       return true;
     },
   },
+  {
+    functionName: 'apilintPropertyUniqueSiblingValue',
+    function: (element, elementOrClasses, key) => {
+      const value = toValue(element);
+      const elements = filter((el) => {
+        const classes: string[] = toValue(el.getMetaProperty('classes', []));
+
+        return (
+          (elementOrClasses.includes(el.element) ||
+            classes.every((v) => elementOrClasses.includes(v))) &&
+          isObject(el) &&
+          el.hasKey(key) &&
+          toValue(el.get(key)) === value
+        );
+      }, element.parent?.parent?.parent);
+      return elements.length <= 1;
+    },
+  },
   {
     functionName: 'apilintChannelParameterExist',
     function: (element: Element): boolean => {