Add a unit test showing that goog.module.get is not properly collapsed and this results in unnecessary bloat.

PiperOrigin-RevId: 715981791

Author: concavelenz

test/com/google/javascript/jscomp/InlineAndCollapsePropertiesTest.java

@@ -1902,6 +1902,27 @@ public void testCtorManyAssignmentsDontInlineWarn() {
         warning(InlineAndCollapseProperties.UNSAFE_CTOR_ALIASING));
   }
 
+  @Test
+  public void testCollapseOfGoogModule() {
+    test(
+        lines(
+            "var goog = goog || {};", //
+            "/** @constructor */",
+            "goog.module = function(id) {};",
+            "goog.module.get = function(id) {};",
+            "goog.module.getInternal_ = function(id) {};",
+            "goog.module = goog.module || {};",
+            ""),
+        lines(
+            "var goog = goog || {};", //
+            "var goog$module = function(id) {};",
+            // TODO(b/389129315): This should be goog$module$get.
+            "goog$module.get = function(id) {};",
+            "goog$module.getInternal_ = function(id) {};",
+            "goog$module = goog$module || {};",
+            ""));
+  }
+
   @Test
   public void testCodeGeneratedByGoogModule() {
     // The static property is added to the exports object