Use new abicoder pragma.

test/libsolidity/syntaxTests/iceRegressionTests/large_struct_array.sol

@@ -1,5 +1,5 @@
 // Used to cause ICE because of a too strict assert
-pragma experimental ABIEncoderV2;
+pragma abicoder               v2;
 contract C {
     struct S { uint a; T[222222222222222222222222222] sub; }
     struct T { uint[] x; }