Add tests

Author: zhengbli

tests/cases/fourslash/findReferencesAcrossMultipleProjects.ts

@@ -0,0 +1,17 @@
+/// <reference path="fourslash.ts" />
+
+//@Filename: a.ts
+////var /*1*/x: number;
+
+//@Filename: b.ts
+/////// <reference path="a.ts" />
+////x++;
+
+//@Filename: c.ts
+/////// <reference path="a.ts" />
+////x++;
+
+goTo.file("a.ts");
+goTo.marker("1");
+
+verify.referencesCountIs(3);

tests/cases/fourslash/goToDefinitionAcrossMultipleProjects.ts

@@ -0,0 +1,17 @@
+/// <reference path="fourslash.ts" />
+
+//@Filename: a.ts
+////var x: number;
+
+//@Filename: b.ts
+////var x: number;
+
+//@Filename: c.ts
+/////// <reference path="a.ts" />
+/////// <reference path="b.ts" />
+/////**/x++;
+
+goTo.file("c.ts");
+goTo.marker();
+
+verify.definitionCountIs(2);

tests/cases/fourslash/renameAcrossMultipleProjects.ts

@@ -0,0 +1,17 @@
+/// <reference path="fourslash.ts" />
+
+//@Filename: a.ts
+////var /*1*/[|x|]: number;
+
+//@Filename: b.ts
+/////// <reference path="a.ts" />
+////[|x|]++;
+
+//@Filename: c.ts
+/////// <reference path="a.ts" />
+////[|x|]++;
+
+goTo.file("a.ts");
+goTo.marker("1");
+
+verify.renameLocations( /*findInStrings*/ false, /*findInComments*/ false);