Drop the '.jsdata' file extension when naming parameterized SourceMap…

…JsLangTetst test cases. This follows the existing naming convention for the test input files, but dropping the extension from the test case name yields more useful test result output.

PiperOrigin-RevId: 635834194

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

@@ -60,7 +60,11 @@ public final class SourceMapJsLangTest extends SourceMapTestCase {
   public static ImmutableList<? extends Object> data() {
     ImmutableList.Builder<String> testFiles = ImmutableList.builder();
     for (File testFile : new File(DATA_DIR).listFiles()) {
-      testFiles.add(testFile.getName());
+      if (!testFile.getName().endsWith(".jsdata")) {
+        continue;
+      }
+      testFiles.add(
+          testFile.getName().substring(0, testFile.getName().length() - ".jsdata".length()));
     }
     return testFiles.build();
   }
@@ -72,7 +76,7 @@ public static ImmutableList<? extends Object> data() {
 
   public SourceMapJsLangTest(String fileName) throws Exception {
     this.fileName = fileName;
-    this.fileContent = Files.asCharSource(new File(DATA_DIR, fileName), UTF_8).read();
+    this.fileContent = Files.asCharSource(new File(DATA_DIR, fileName + ".jsdata"), UTF_8).read();
     this.prettyPrinted = false;
     this.inputMaps = ImmutableMap.builder();
   }