Fix implicitly typed functions with jsx: react-jsx

Author: michaldudak

src/parser.ts

@@ -259,7 +259,9 @@ export function parseFromProgram(
 			return (
 				name === 'global.JSX.Element' ||
 				name === 'React.ReactElement' ||
-				name === 'React.JSX.Element'
+				name === 'React.JSX.Element' ||
+				name.endsWith('@types/react/jsx-runtime".JSX.Element') || // when `"jsx": "react-jsx"` in tsconfig
+				name.endsWith('@types/react/jsx-dev-runtime".JSX.Element') // when `"jsx": "react-jsxdev"` in tsconfig
 			);
 		}
 

test/function-declaration/input.tsx

@@ -0,0 +1,7 @@
+export function Component(props: Props) {
+	return <div {...props} />;
+}
+
+interface Props {
+	className?: string;
+}

test/function-declaration/output.json

@@ -0,0 +1,30 @@
+{
+	"nodeType": "program",
+	"body": [
+		{
+			"nodeType": "component",
+			"name": "Component",
+			"props": [
+				{
+					"nodeType": "prop",
+					"name": "className",
+					"propType": {
+						"nodeType": "union",
+						"types": [
+							{
+								"nodeType": "simpleType",
+								"typeName": "undefined"
+							},
+							{
+								"nodeType": "simpleType",
+								"typeName": "string"
+							}
+						]
+					},
+					"optional": true,
+					"filenames": {}
+				}
+			]
+		}
+	]
+}