include .gjs files in index (#158)

* include .gjs files in index

* bump index version

Author: dwickern

src/main/kotlin/com/emberjs/index/EmberNameIndex.kt

@@ -18,7 +18,7 @@ import com.intellij.util.io.BooleanDataDescriptor
 class EmberNameIndex : ScalarIndexExtension<Boolean>() {
 
     override fun getName() = NAME
-    override fun getVersion() = 7
+    override fun getVersion() = 8
     override fun getKeyDescriptor() = BooleanDataDescriptor.INSTANCE
     override fun dependsOnFileContent() = false
 
@@ -28,7 +28,7 @@ class EmberNameIndex : ScalarIndexExtension<Boolean>() {
 
     companion object {
         val NAME: ID<Boolean, Void> = ID.create("ember.names")
-        private val FILE_EXTENSIONS = setOf("css", "scss", "js", "ts", "hbs", "handlebars", "gts")
+        private val FILE_EXTENSIONS = setOf("css", "scss", "js", "ts", "hbs", "handlebars", "gjs", "gts")
 
         val index: FileBasedIndex get() = FileBasedIndex.getInstance()