Triage more specs for Dart Sass.

spec/colors/basic-4.0/expected_output.css

@@ -0,0 +1,8 @@
+p {
+  color: #ff8000;
+  color: red green blue;
+  color: red green blue;
+  color: redhux;
+  color: redgreen;
+  foo: #c8ffff;
+}

spec/colors/basic-4.0/input.scss

@@ -0,0 +1,8 @@
+p {
+  color: rgb(255, 128, 0);
+  color: red green blue;
+  color: (red) (green) (blue);
+  color: red + hux;
+  color: unquote("red") + green;
+  foo: rgb(200, 150%, 170%);
+}

spec/colors/basic/options.yml

@@ -1,3 +1,2 @@
 ---
-:todo:
-- dart-sass
+:end_version: '3.5'

spec/errors/import/url/mixin/simple/inside/error-dart-sass

@@ -0,0 +1,5 @@
+Error: Undefined variable.
+  @import url("http://fonts.googleapis.com/css?family=#{$family}");
+                                                        ^^^^^^^
+  spec/errors/import/url/mixin/simple/inside/input.scss 2:57  import-google-fonts()
+  spec/errors/import/url/mixin/simple/inside/input.scss 6:3   root stylesheet

spec/libsass-closed-issues/issue_1093/argument/mixin-4.0/error-dart-sass

@@ -0,0 +1,4 @@
+Error: Expected expression.
+@mixin foo($bar:#{}) {
+                ^^
+  /sass/spec/libsass-issues/issue_1093/argument/mixin-4.0/input.scss 1:17

spec/libsass-closed-issues/issue_1093/argument/mixin-4.0/options.yml

@@ -1,4 +1,2 @@
 ---
 :start_version: '4.0'
-:warning_todo:
-- dart-sass

spec/libsass-todo-issues/issue_1720/error-dart-sass

@@ -0,0 +1,4 @@
+Error: expected "{".
+
+^
+  /sass/spec/libsass-issues/issue_1720/input.scss 4:1

spec/libsass-todo-issues/issue_2056/expected_output.css

@@ -0,0 +1,3 @@
+:foobar(.baz) {
+  color: red;
+}

spec/libsass-todo-issues/issue_2056/options.yml

@@ -1,3 +1,3 @@
 ---
 :todo:
-- dart-sass
+- ruby-sass

spec/libsass-todo-tests/errors/addition/alpha-channels/options.yml

@@ -1,3 +1,2 @@
 ---
-:warning_todo:
-- dart-sass
+:end_version: '3.5'

spec/libsass-todo-tests/errors/subtraction/alpha-channels/options.yml

@@ -1,3 +1,2 @@
 ---
-:warning_todo:
-- dart-sass
+:end_version: '3.5'