clang-format: [Java] Fix class declaration line breaks.

Before:
  @SomeAnnotation()
  abstract
      class aaaaaaaaa<a> extends bbbbbbbbbbbb<b> implements cccccccccccc {
  }

After:
  @SomeAnnotation()
  abstract class aaaaaaaaa<a> extends bbbbbbbbbbbb<b>
      implements cccccccccccc {
  }

llvm-svn: 221256

clang/unittests/Format/FormatTestJava.cpp

@@ -82,6 +82,11 @@ TEST_F(FormatTestJava, ClassDeclarations) {
                "    implements cccccccccccc {\n"
                "}",
                getStyleWithColumns(76));
+  verifyFormat("@SomeAnnotation()\n"
+               "abstract class aaaaaaaaa<a> extends bbbbbbbbbbbb<b>\n"
+               "    implements cccccccccccc {\n"
+               "}",
+               getStyleWithColumns(76));
 }
 
 TEST_F(FormatTestJava, EnumDeclarations) {