[clang-format] Handle Template Arguments with AlignConsecutiveXX

[HazardyKnusperkeks]

Summary

This fixes https://github.com/llvm/llvm-project/issues/64928.

clang/lib/Format/WhitespaceManager.cpp

if (InsideNestedScope && Changes[i].NewlinesBefore > 0) {
               return false;
             }
           }
           if (Changes[ScopeStart].NewlinesBefore > 0)
             return false;
           return true;
         }
 
+        // Continued template parameter.
+        if (Changes[ScopeStart - 1].Tok->is(TT_TemplateOpener))
+          return true;
+
         return false;
       };
 
       if (ShouldShiftBeAdded())
         Changes[i].Spaces += Shift;
     }
 
     if (ContinuedStringLiteral)

clang/unittests/Format/FormatTest.cpp

verifyFormat("int a_long_name = 1;\n"
                "                    {a_longer_name_for_wrap,\n"
                "                     a_longer_name_for_wrap});",
                Alignment);
   verifyFormat("int a_long_name = 1;\n"
                "auto b          = B{{a_long_name, a_long_name},\n"
                "                    {a_longer_name_for_wrap,\n"
                "                     a_longer_name_for_wrap}};",
                Alignment);
+
+  Alignment.ColumnLimit = 60;
+  verifyFormat("using II = typename TI<T, std::tuple<Types...>>::I;\n"
+               "using I  = std::conditional_t<II::value >= 0,\n"
+               "                              std::ic<int, II::value + 1>,\n"
+               "                              std::ic<int, -1>>;",
+               Alignment);
 }
 
 TEST_F(FormatTest, AlignConsecutiveBitFields) {
   FormatStyle Alignment = getLLVMStyle();
   Alignment.AlignConsecutiveBitFields.Enabled = true;
   verifyFormat("int const a     : 5;\n"
                "int oneTwoThree : 23;",
                Alignment);