add TSIntersectionType (#1395)

* add TSIntersectionType

* use same print implementation for flow and typescript

src/printer.js

@@ -1705,6 +1705,7 @@ function genericPrintNoParens(path, options, print, args) {
         path.call(print, "id"),
         path.call(print, "typeParameters")
       ]);
+    case "TSIntersectionType":
     case "IntersectionTypeAnnotation": {
       const types = path.map(print, "types");
       const result = [];

tests/typescript/conformance/types/intersectionType/__snapshots__/jsfmt.spec.js.snap

@@ -0,0 +1,16 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`intersectionType.ts 1`] = `
+type A = & string;
+type B =
+  & { foo: string }
+  & { bar: number };
+
+type C = [& { foo: 1 } & { bar: 2 }, & { foo: 3 } & { bar: 4 }];
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+type A = string;
+type B = { foo: string } & { bar: number };
+
+type C = [{ foo: 1 } & { bar: 2 }, { foo: 3 } & { bar: 4 }];
+
+`;

tests/typescript/conformance/types/intersectionType/intersectionType.ts

@@ -0,0 +1,6 @@
+type A = & string;
+type B =
+  & { foo: string }
+  & { bar: number };
+
+type C = [& { foo: 1 } & { bar: 2 }, & { foo: 3 } & { bar: 4 }];

tests/typescript/conformance/types/intersectionType/jsfmt.spec.js

@@ -0,0 +1 @@
+run_spec(__dirname, { parser: "typescript" });