Emit occurrences for string literals (#184)

* Emit occurrences for string literals

Previously, scip-typescript only emitted occurrences for identifiers.
Now, we additionally emit occurrences for string literals so that
features like "Go to definition" work with `import` statements and other
locations where string literals reference actual symbols.

* Prettier

* Remove cwd from documentation signatures for stable SCIP output

* Use replace instead of replaceAll for Node v14 compatibility

* Include the file extension in the module name

Author: olafurpg

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+  "editor.formatOnSave": true
+}

snapshots/input/syntax/src/import.ts

@@ -11,3 +11,7 @@ export function useEverything(): string {
     newFunction()
   )
 }
+
+export function dynamicImport(): Promise<void> {
+  return import('./function').then(c => c.newFunction())
+}

snapshots/input/syntax/src/string-literals.ts

@@ -0,0 +1,10 @@
+interface SomeInterface {
+  a: number
+  b: number
+  c: number
+}
+// "Go to definition" does not work for the 'a', 'b' and 'c' string literals
+// below when using tsserver so it's fine that scip-typescript does not emit
+// occurrences here either.
+export type OmitInterface = Omit<SomeInterface, 'a' | 'b'>
+export type PickInterface = Pick<SomeInterface, 'b' | 'c'>

snapshots/output/multi-project/packages/a/src/index.ts

@@ -1,4 +1,6 @@
   export function a(): string {
+// definition @example/a 1.0.0 src/`index.ts`/
+//documentation ```ts\nmodule "index.ts"\n```
 //                ^ definition @example/a 1.0.0 src/`index.ts`/a().
 //                documentation ```ts\nfunction a(): string\n```
     return ''

snapshots/output/multi-project/packages/b/src/b.ts

@@ -1,5 +1,8 @@
   import { a } from '@example/a/src'
+// definition @example/b 1.0.0 src/`b.ts`/
+//documentation ```ts\nmodule "b.ts"\n```
 //         ^ reference @example/a 1.0.0 src/`index.ts`/a().
+//                  ^^^^^^^^^^^^^^^^ reference @example/a 1.0.0 src/`index.ts`/
 
   export function b() {
 //                ^ definition @example/b 1.0.0 src/`b.ts`/b().

snapshots/output/pure-js/src/main.js

@@ -1,4 +1,6 @@
   function fib(n) {
+// definition pure-js 1.0.0 src/`main.js`/
+//documentation ```ts\nmodule "main.js"\n```
 //         ^^^ definition pure-js 1.0.0 src/`main.js`/fib().
 //         documentation ```ts\nfunction fib(n: any): any\n```
 //             ^ definition pure-js 1.0.0 src/`main.js`/fib().(n)

snapshots/output/react/src/LoaderInput.tsx

@@ -1,5 +1,8 @@
   import React from 'react'
+// definition react-example 1.0.0 src/`LoaderInput.tsx`/
+//documentation ```ts\nmodule "LoaderInput.tsx"\n```
 //       ^^^^^ reference @types/react 17.0.0 `index.d.ts`/React/
+//                  ^^^^^^^ reference @types/react 17.0.0 `index.d.ts`/
 
   /** Takes loading prop, input component as child */
   interface Props {

snapshots/output/react/src/MyTSXElement.tsx

@@ -1,5 +1,8 @@
   import React from 'react'
+// definition react-example 1.0.0 src/`MyTSXElement.tsx`/
+//documentation ```ts\nmodule "MyTSXElement.tsx"\n```
 //       ^^^^^ reference @types/react 17.0.0 `index.d.ts`/React/
+//                  ^^^^^^^ reference @types/react 17.0.0 `index.d.ts`/
 
   export interface MyProps {}
 //                 ^^^^^^^ definition react-example 1.0.0 src/`MyTSXElement.tsx`/MyProps#

snapshots/output/react/src/UseMyTSXElement.tsx

@@ -1,9 +1,13 @@
   import React from "react";
+// definition react-example 1.0.0 src/`UseMyTSXElement.tsx`/
+//documentation ```ts\nmodule "UseMyTSXElement.tsx"\n```
 //       ^^^^^ reference @types/react 17.0.0 `index.d.ts`/React/
+//                  ^^^^^^^ reference @types/react 17.0.0 `index.d.ts`/
 
   import { MyProps, MyTSXElement } from "./MyTSXElement";
 //         ^^^^^^^ reference react-example 1.0.0 src/`MyTSXElement.tsx`/MyProps#
 //                  ^^^^^^^^^^^^ reference react-example 1.0.0 src/`MyTSXElement.tsx`/MyTSXElement.
+//                                      ^^^^^^^^^^^^^^^^ reference react-example 1.0.0 src/`MyTSXElement.tsx`/
 
   export const _: React.FunctionComponent<MyProps> =
 //             ^ definition react-example 1.0.0 src/`UseMyTSXElement.tsx`/_.

snapshots/output/syntax/src/accessors.ts

@@ -1,4 +1,6 @@
   class C {
+// definition syntax 1.0.0 src/`accessors.ts`/
+//documentation ```ts\nmodule "accessors.ts"\n```
 //      ^ definition syntax 1.0.0 src/`accessors.ts`/C#
 //      documentation ```ts\nclass C\n```
     _length: number = 0