clang-format: [Java] Don't break after extends/implements.

Before:
  abstract class SomeClass extends SomeOtherClass implements
      SomeInterface {}

After:
  abstract class SomeClass extends SomeOtherClass
      implements SomeInterface {}

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@221103 91177308-0d34-0410-b5e6-96231b3b80d8