fix missing gjs ts analysis (#341)

Author: patricklx

src/main/kotlin/com/emberjs/gts/GtsSupport.kt

@@ -602,7 +602,9 @@ val GTS_DEFAULT_EXTENSIONS_WITH_DOT = arrayOf(".gts", ".gjs")
 
 class GtsImportResolver(project: Project,
                         resolveContext: JSImportResolveContext,
-                        private val contextFile: VirtualFile): TypeScriptFileImportsResolverImpl(project, resolveContext, GTS_DEFAULT_EXTENSIONS_WITH_DOT, listOf(GtsFileType.INSTANCE)) {
+                        private val contextFile: VirtualFile):
+    TypeScriptFileImportsResolverImpl(project, resolveContext, GTS_DEFAULT_EXTENSIONS_WITH_DOT, listOf(GtsFileType.INSTANCE, GjsFileType.INSTANCE
+)) {
 
     override fun processAllFilesInScope(includeScope: GlobalSearchScope, processor: Processor<in VirtualFile>) {
         if (includeScope == GlobalSearchScope.EMPTY_SCOPE) return
@@ -621,6 +623,9 @@ class GtsImportResolver(project: Project,
         TypeScriptImportsResolverProvider.getDefaultProvider(project, resolveContext)
             .resolveFileModule("gts", contextFile)
             ?.let { processor.process(it) }
+        TypeScriptImportsResolverProvider.getDefaultProvider(project, resolveContext)
+            .resolveFileModule("gjs", contextFile)
+            ?.let { processor.process(it) }
     }
 
     override fun getPriority(): Int = TypeScriptFileImportsResolver.JS_DEFAULT_PRIORITY
@@ -660,6 +665,13 @@ class GtsComponentCandidatesProvider(val placeInfo: JSImportPlaceInfo) : JSImpor
             .flatten()
             .toMutableList()
 
+        list.addAll(FilenameIndex.getAllFilesByExt(project, "gjs",
+            createProjectImportsScope(placeInfo, getStructureModuleRoot(placeInfo)))
+            .map { getExports(it) }
+            .flatten()
+            .toMutableList()
+        )
+
         val scopes = EmberUtils.getScopesForFile(myPlaceInfo.file)
 
         val scope = ProjectScope.getAllScope(project)
@@ -728,6 +740,9 @@ class GtsComponentCandidatesProvider(val placeInfo: JSImportPlaceInfo) : JSImpor
         return if (virtualFile.name == "index.gts") {
             virtualFile.parent.name
         }
+        else if (virtualFile.name == "index.gjs") {
+            virtualFile.parent.name
+        }
         else {
             virtualFile.nameWithoutExtension
         }