Fix function validateWhereClauseStructure

Author: neuroevolutus

server/src/server.ts

@@ -520,11 +520,10 @@ function validateWhereClauseStructure(node: SyntaxNode): Diagnostic[] {
 
       for (let i = 0; i < currentNode.childCount; i++) {
         const child = currentNode.child(i);
-        if (child?.type === ";" && i + 2 < currentNode.childCount) {
+        if (child?.type === ";" && i + 1 < currentNode.childCount) {
           const nextChild = currentNode.child(i + 1);
-          const followingChild = currentNode.child(i + 2);
 
-          if (nextChild?.type === "id" && followingChild?.type === "=") {
+          if (nextChild?.child(0)?.type === "pattern" && nextChild?.child(1)?.type === "=") {
             hasProperStructure = true;
             break;
           }