Add explicit "default" to switch statements

Author: nschonni

src/eval.cpp

@@ -1096,6 +1096,7 @@ namespace Sass {
                                    t->value());
         }
       } break;
+      default: break;
     }
     result->is_interpolant(t->is_interpolant());
     return result.detach();
@@ -1683,6 +1684,7 @@ namespace Sass {
       case SASS_WARNING: {
         error("Warning in C function: " + std::string(sass_warning_get_message(v)), pstate, backtrace);
       } break;
+      default: break;
     }
     return e;
   }

src/inspect.cpp

@@ -1038,6 +1038,7 @@ namespace Sass {
         if (tail) append_mandatory_space();
         else append_optional_space();
       break;
+      default: break;
     }
     if (tail && comb != Complex_Selector::ANCESTOR_OF) {
       if (c->has_line_break()) append_optional_linefeed();

src/listize.cpp

@@ -64,6 +64,7 @@ namespace Sass {
       break;
       case Complex_Selector::ANCESTOR_OF:
       break;
+      default: break;
     }
 
     Complex_Selector_Obj tail = sel->tail();

src/parser.cpp

@@ -2659,6 +2659,7 @@ namespace Sass {
       skip = check_bom_chars(source, end, gb_18030_bom, 4);
       encoding = "GB-18030";
       break;
+    default: break;
     }
     if (skip > 0 && !utf_8) error("only UTF-8 documents are currently supported; your document appears to be " + encoding, pstate);
     position += skip;

src/sass_values.cpp

@@ -221,6 +221,7 @@ extern "C" {
         case SASS_WARNING: {
                 free(val->error.message);
         }   break;
+        default: break;
     }
 
     free(val);
@@ -270,6 +271,7 @@ extern "C" {
         case SASS_WARNING: {
                 return sass_make_warning(val->warning.message);
         }
+        default: break;
     }
 
     return 0;

src/values.cpp

@@ -123,6 +123,7 @@ namespace Sass {
         return SASS_MEMORY_NEW(Custom_Warning,
                                ParserState("[C-VALUE]"),
                                sass_warning_get_message(val));
+      default: break;
     }
     return 0;
   }