passes the jsxPragma options from preset-typescript to plugin-transform-typescript (babel#7990)

Author: malbernaz

packages/babel-preset-typescript/README.md

@@ -53,3 +53,13 @@ require("@babel/core").transform("code", {
   presets: ["@babel/preset-typescript"]
 });
 ```
+
+## Options
+
+### `jsxPragma`
+
+`string`
+
+Replace the function used when compiling JSX expressions.
+
+This is so that we know that the import is not a type import, and should not be removed

packages/babel-preset-typescript/src/index.js

@@ -1,10 +1,10 @@
 import { declare } from "@babel/helper-plugin-utils";
 import transformTypeScript from "@babel/plugin-transform-typescript";
 
-export default declare(api => {
+export default declare((api, { jsxPragma }) => {
   api.assertVersion(7);
 
   return {
-    plugins: [transformTypeScript],
+    plugins: [[transformTypeScript, { jsxPragma }]],
   };
 });