Support multiple unbalanced parentheses

actions-expressions/src/completion.test.ts

@@ -88,6 +88,8 @@ describe("auto-complete", () => {
       expect(testComplete("1 == toJS")).toContainEqual(expected);
       expect(testComplete("1 == (toJS")).toContainEqual(expected);
       expect(testComplete("toJS| == 1")).toContainEqual(expected);
+      expect(testComplete("(toJS| == (foo.bar)")).toContainEqual(expected);
+      expect(testComplete("(((toJS| == (foo.bar)")).toContainEqual(expected);
     });
 
     it("removes parentheses from passed in function context", () => {

actions-expressions/src/completion.ts

@@ -144,6 +144,7 @@ export function trimTokenVector(tokenVector: Token[]): Token[] {
           // Encountered an open parenthesis without a closing first, stop here
           break;
         }
+        openParen--;
         tokenIdx--;
         continue;