Add types for esrever (#38048)

types/esrever/esrever-tests.ts

@@ -0,0 +1,4 @@
+import * as esrever from "esrever";
+
+esrever.version;  // $ExpectType string
+esrever.reverse("abc");  // $ExpectType string

types/esrever/index.d.ts

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+// Type definitions for esrever 0.2
+// Project: https://github.com/mathiasbynens/esrever
+// Definitions by: Yuichiro Tsuchiya <https://github.com/tuttieee>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export as namespace esrever;
+
+/**
+ * A string representing the semantic version number.
+ */
+export const version: string;
+
+/**
+ * This function takes a string and returns the reversed version of that string,
+ * correctly accounting for Unicode combining marks and astral symbols.
+ */
+export function reverse(text: string): string;

types/esrever/tsconfig.json

@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "esrever-tests.ts"
+    ]
+}

types/esrever/tslint.json

@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }