Added occurrences tests.

tests/cases/fourslash/server/occurrences01.ts

@@ -0,0 +1,27 @@
+/// <reference path="../fourslash.ts"/>
+
+////foo: [|switch|] (10) {
+////    [|case|] 1:
+////    [|case|] 2:
+////    [|case|] 3:
+////        [|break|];
+////        [|break|] foo;
+////        co/*1*/ntinue;
+////        contin/*2*/ue foo;
+////}
+
+let ranges = test.ranges();
+
+for (let r of ranges) {
+    goTo.position(r.start);
+    verify.occurrencesAtPositionCount(ranges.length);
+
+    for (let range of ranges) {
+        verify.occurrencesAtPositionContains(range, false);
+    }
+}
+
+for (let m of test.markers()) {
+    goTo.position(m.position);
+    verify.occurrencesAtPositionCount(0);
+}

tests/cases/fourslash/server/occurrences02.ts

@@ -0,0 +1,16 @@
+/// <reference path="../fourslash.ts"/>
+
+////function [|f|](x: typeof [|f|]) {
+////    [|f|]([|f|]);
+////}
+
+let ranges = test.ranges();
+
+for (let r of ranges) {
+    goTo.position(r.start);
+    verify.occurrencesAtPositionCount(ranges.length);
+
+    for (let range of ranges) {
+        verify.occurrencesAtPositionContains(range, false);
+    }
+}