[ffi] Format tests/ffi/ with new style - automated

Includes all the files which required no manual treatment.

Change-Id: I3d493bcbc238a2016579a0f804d32f4829efb87b
Cq-Include-Trybots: dart/try:vm-aot-android-release-arm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-debug-x64c-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-win-debug-x64c-try,vm-checked-mac-release-arm64-try,vm-ffi-qemu-linux-release-arm-try,vm-ffi-qemu-linux-release-riscv64-try,vm-linux-debug-ia32-try,vm-linux-debug-x64-try,vm-linux-debug-x64c-try,vm-mac-debug-arm64-try,vm-reload-linux-debug-x64-try,vm-reload-rollback-linux-debug-x64-try,vm-win-release-ia32-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/399102
Reviewed-by: Bob Nystrom <[email protected]>
Commit-Queue: Daco Harkes <[email protected]>

Author: dcharkes

tests/ffi/abi_specific_int_incomplete_jit_test.dart

@@ -12,9 +12,7 @@ import 'package:ffi/ffi.dart';
 // We want at least 1 mapping to satisfy the static checks.
 const notTestingOn = Abi.fuchsiaArm64;
 
-@AbiSpecificIntegerMapping({
-  notTestingOn: Int8(),
-})
+@AbiSpecificIntegerMapping({notTestingOn: Int8()})
 final class Incomplete extends AbiSpecificInteger {
   const Incomplete();
 }