JS: Ensure embedded TypeScript is extracted even when not associated with a tsconfig

Author: asgerf

javascript/extractor/src/com/semmle/js/extractor/Main.java

@@ -7,6 +7,7 @@
 import java.util.ArrayList;
 import java.util.LinkedHashSet;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
@@ -179,6 +180,12 @@ public void run(String[] args) {
         remainingTypescriptFiles.add(f);
       }
     }
+    for (Map.Entry<Path, FileSnippet> entry : extractorState.getSnippets().entrySet()) {
+      if (!extractedFiles.contains(entry.getKey().toFile())
+          && FileType.forFileExtension(entry.getKey().toFile()) == FileType.TYPESCRIPT) {
+        remainingTypescriptFiles.add(entry.getKey().toFile());
+      }
+    }
     if (!remainingTypescriptFiles.isEmpty()) {
       tsParser.prepareFiles(remainingTypescriptFiles);
       for (File f : remainingTypescriptFiles) {