clang-format: [Java] Support anonymous classes after = and return.

Before:
  A a = new A(){public String toString(){return "NotReallyA";
  }
  }
  ;

After:
  A a = return new A() {
    public String toString() {
      return "NotReallyA";
    }
  };

This fixes llvm.org/PR22878.

llvm-svn: 232042

clang/unittests/Format/FormatTestJava.cpp

@@ -153,6 +153,19 @@ TEST_F(FormatTestJava, ClassDeclarations) {
                "}");
 }
 
+TEST_F(FormatTestJava, AnonymousClasses) {
+  verifyFormat("return new A() {\n"
+               "  public String toString() {\n"
+               "    return \"NotReallyA\";\n"
+               "  }\n"
+               "};");
+  verifyFormat("A a = new A() {\n"
+               "  public String toString() {\n"
+               "    return \"NotReallyA\";\n"
+               "  }\n"
+               "};");
+}
+
 TEST_F(FormatTestJava, EnumDeclarations) {
   verifyFormat("enum SomeThing { ABC, CDE }");
   verifyFormat("enum SomeThing {\n"