test(typescript): do not fail debug check on Literal -> Identifier (#1540)

bin/prettier.js

@@ -189,7 +189,7 @@ function format(input) {
 
         // We change {'key': value} into {key: value}
         if (
-          ast.type === "Property" &&
+          (ast.type === "Property" || ast.type === "MethodDefinition") &&
           typeof ast.key === "object" &&
           ast.key &&
           (ast.key.type === "Literal" || ast.key.type === "Identifier")

tests/typescript/compiler/ClassDeclaration22.ts

@@ -0,0 +1,4 @@
+class C {
+    "foo"();
+    "bar"() { }
+}

tests/typescript/compiler/__snapshots__/jsfmt.spec.js.snap

@@ -1,5 +1,18 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`ClassDeclaration22.ts 1`] = `
+class C {
+    "foo"();
+    "bar"() { }
+}
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+class C {
+  foo();
+  bar() {}
+}
+
+`;
+
 exports[`badArrayIndex.ts 1`] = `
 var results = number[];
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~