JS: Ensure tsconfig.json files are extracted properly in tests

Author: asgerf

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

@@ -29,7 +29,7 @@ public Context(Label parent, int childIndex) {
   private final boolean tolerateParseErrors;
 
   public JSONExtractor(ExtractorConfig config) {
-    this.tolerateParseErrors = config.isTolerateParseErrors();
+    this.tolerateParseErrors = true;
   }
 
   @Override

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

@@ -303,7 +303,10 @@ public void setupMatchers(ArgsParser ap) {
     addIncludesFor(includes, FileType.JS);
 
     // extract TypeScript if `--typescript` or `--typescript-full` was specified
-    if (getTypeScriptMode(ap) != TypeScriptMode.NONE) addIncludesFor(includes, FileType.TYPESCRIPT);
+    if (getTypeScriptMode(ap) != TypeScriptMode.NONE) {
+      addIncludesFor(includes, FileType.TYPESCRIPT);
+      includes.add("**/tsconfig*.json");
+    }
 
     // add explicit include patterns
     for (String pattern : ap.getZeroOrMore(P_INCLUDE))