add rewatch tests for files starting with lowercase letter (#7569)

Author: tsnobip

rewatch/testrepo/packages/file-casing/package.json

@@ -0,0 +1,9 @@
+{
+  "name": "@testrepo/file-casing",
+  "version": "0.0.1",
+  "keywords": [
+    "rescript"
+  ],
+  "author": "",
+  "license": "MIT"
+}

rewatch/testrepo/packages/file-casing/rescript.json

@@ -0,0 +1,21 @@
+{
+  "name": "@testrepo/file-casing",
+  "sources": [
+    {
+      "dir": "src",
+      "subdirs": true
+    }
+  ],
+  "package-specs": [
+    {
+      "module": "es6",
+      "in-source": true
+    }
+  ],
+  "suffix": ".mjs",
+  "bs-dependencies": [],
+  "bsc-flags": [],
+  "jsx": {
+    "version": 4
+  }
+}

rewatch/testrepo/packages/file-casing/src/Consume.mjs

@@ -0,0 +1,10 @@
+// Generated by ReScript, PLEASE EDIT WITH CARE
+
+import * as Produce$NamespaceCasingAPI from "./produce.mjs";
+
+let x = Produce$NamespaceCasingAPI.meh(1);
+
+export {
+  x,
+}
+/* x Not a pure module */

rewatch/testrepo/packages/file-casing/src/Consume.res

@@ -0,0 +1 @@
+let x = Produce.meh(1)

rewatch/testrepo/packages/file-casing/src/produce.mjs

@@ -0,0 +1,11 @@
+// Generated by ReScript, PLEASE EDIT WITH CARE
+
+
+function meh(param) {
+  return true;
+}
+
+export {
+  meh,
+}
+/* No side effect */

rewatch/testrepo/packages/file-casing/src/produce.res

@@ -0,0 +1,3 @@
+let meh = (_: int) => {
+  true
+}