Add logic to create loop label tooltip message

spec/parser/javascript/repeat_spec.js

@@ -265,6 +265,74 @@ describe('parser/javascript/repeat.js', function() {
 
   });
 
+  describe('tooltip property', function() {
+
+    beforeEach(function() {
+      this.node = new javascript.Parser('*').__consume__repeat();
+    });
+
+    _.each([
+      {
+        minimum: 1,
+        maximum: -1,
+        tooltip: undefined
+      },
+      {
+        minimum: 0,
+        maximum: 0,
+        tooltip: undefined
+      },
+      {
+        minimum: 2,
+        maximum: -1,
+        tooltip: 'repeats 2+ times in total'
+      },
+      {
+        minimum: 3,
+        maximum: -1,
+        tooltip: 'repeats 3+ times in total'
+      },
+      {
+        minimum: 0,
+        maximum: 2,
+        tooltip: 'repeats at most 2 times in total'
+      },
+      {
+        minimum: 0,
+        maximum: 3,
+        tooltip: 'repeats at most 3 times in total'
+      },
+      {
+        minimum: 2,
+        maximum: 2,
+        tooltip: 'repeats 2 times in total'
+      },
+      {
+        minimum: 3,
+        maximum: 3,
+        tooltip: 'repeats 3 times in total'
+      },
+      {
+        minimum: 2,
+        maximum: 3,
+        tooltip: 'repeats 2\u20263 times in total'
+      },
+      {
+        minimum: 3,
+        maximum: 4,
+        tooltip: 'repeats 3\u20264 times in total'
+      }
+
+    ], t => {
+      it(`is "${t.tooltip}" when minimum=${t.minimum} and maximum=${t.maximum}`, function() {
+        this.node.minimum = t.minimum;
+        this.node.maximum = t.maximum;
+        expect(this.node.tooltip).toEqual(t.tooltip);
+      });
+    });
+
+  });
+
   describe('#skipPath', function() {
 
     beforeEach(function() {

src/js/parser/javascript/repeat.js

@@ -47,6 +47,31 @@ export default {
           }
         }
       }
+    },
+
+    // Tooltip to place of loop path label to provide further details.
+    tooltip: {
+      get: function() {
+        let repeatCount;
+        if (this.minimum === this.maximum) {
+          if (this.minimum === 0) {
+            repeatCount = undefined;
+          } else {
+            repeatCount = formatTimes(this.minimum);
+          }
+        } else if (this.minimum <= 1 && this.maximum >= 2) {
+          repeatCount = `at most ${formatTimes(this.maximum)}`;
+        } else if (this.minimum >= 2) {
+          if (this.maximum === -1) {
+            repeatCount = `${this.minimum}+ times`;
+          } else {
+            repeatCount = `${this.minimum}\u2026${formatTimes(this.maximum)}`;
+          }
+        }
+
+        console.log(repeatCount, this.minimum, this.maximum);
+        return repeatCount ? `repeats ${repeatCount} in total` : repeatCount;
+      }
     }
   },