fix broken tests (#78)

exercises/practice/allergies/.meta/reference.chpl

@@ -2,7 +2,7 @@ module Allergies {
   const allergens = ["eggs", "peanuts", "shellfish", "strawberries", "tomatoes", "chocolate", "pollen", "cats"];
 
   proc isAllergicTo(score: int, allergen: string) {
-    var (_, idx) = allergens.find(allergen);
+    var idx = allergens.find(allergen);
     return (1 << idx) & score != 0;
   }
 

exercises/practice/dominoes/.meta/reference.chpl

@@ -5,8 +5,8 @@ module Dominoes {
     var graph: [1..6] list(int),
         node = edges[0][0];
     for edge in edges {
-      graph[edge[0]].append(edge[1]);
-      graph[edge[1]].append(edge[0]);
+      graph[edge[0]].pushBack(edge[1]);
+      graph[edge[1]].pushBack(edge[0]);
     }
     return (graph, node);
   }

exercises/practice/high-scores/.meta/reference.chpl

@@ -1,16 +1,17 @@
 module HighScores {
+  use Sort;
 
   proc latest(scores: [] int) {
    return scores.last;
   }
 
   proc personalBest(scores: [] int) {
-    var s = scores.sorted();
-    return s.last;
+    sort(scores);
+    return scores.last;
   }
 
   proc personalTopThree(scores: [] int) {
-    var s = scores.sorted();
-    return [i in 1..min(3, s.size)] s[s.size-i];
+    sort(scores);
+    return [i in 1..min(3, scores.size)] scores[scores.size-i];
   }
 }

exercises/practice/resistor-color/.meta/reference.chpl

@@ -4,7 +4,7 @@ module ResistorColor {
   }
 
   proc colorCode(color : string) {
-    var (_, val) = colors().find(color);
+    var val = colors().find(color);
     return val;
   }
 }

exercises/practice/yacht/.meta/reference.chpl

@@ -1,15 +1,17 @@
 module Yacht {
+  use Sort;
+
   const name2nums = ["ones" => 1, "twos" => 2, "threes" => 3, "fours" => 4, "fives" => 5, "sixes" => 6];
 
   proc score(nums: [] int, cat: string) {
-    var sorted = nums.sorted();
-    if name2nums.domain.contains(cat) then return getNumber(sorted, name2nums[cat]);
-    else if cat == "full house" then return getFullHouse(sorted);
-    else if cat == "four of a kind" then return getFourKind(sorted);
-    else if cat == "little straight" then return getLittleStraight(sorted);
-    else if cat == "big straight" then return getBigStraight(sorted);
-    else if cat == "choice" then return getChoice(sorted);
-    else return getYacht(sorted);
+    sort(nums);
+    if name2nums.domain.contains(cat) then return getNumber(nums, name2nums[cat]);
+    else if cat == "full house" then return getFullHouse(nums);
+    else if cat == "four of a kind" then return getFourKind(nums);
+    else if cat == "little straight" then return getLittleStraight(nums);
+    else if cat == "big straight" then return getBigStraight(nums);
+    else if cat == "choice" then return getChoice(nums);
+    else return getYacht(nums);
   }
 
   proc getNumber(vals: [] int, num: int) {