Update expectations in static_extesion_operators_test

Change-Id: I9f4ebdc9488adb86106df4fe72234ece634924cc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/117722
Commit-Queue: Johnni Winther <[email protected]>
Reviewed-by: Lasse R.H. Nielsen <[email protected]>

Author: johnniwinther

tests/language_2/extension_methods/static_extension_operators_test.dart

@@ -75,7 +75,7 @@ void main() {
   expect("a[b]", a[b]--, "a[b]=(a[b]-1)");
 
   // Combinations.
-  expect("(a+b[b(c)](a*b))", a + b[c[a] = b(c)](a * b), "c[a]=b(c)");
+  expect("(a+b[b(c)]((a*b)))", a + b[c[a] = b(c)](a * b), "c[a]=b(c)");
 
   // Operator precedence is unaffected by being extensions.
   expect("(c<((-a)|(b^((~c)&((a<<b)>>((c-a)+((((b*c)~/a)%b)/c)))))))",