Handle "//# sourceURL" comments in the Parser instead of the JS.

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index 3ce54cf574cad7a83e3bffb9c8d3310a0d6c6720..3fd05db8f04cad9dcb667259eef7a797307f0fcc 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -17630,14 +17630,29 @@ TEST(DynamicWithSourceURLInStackTrace) {
     "\n"
     "  bar();\n"
     "}\n"
+    "%s\n"
     "foo();\n"
     "}\n"
     "outer()\n%s";
 
   i::ScopedVector<char> code(1024);
-  i::OS::SNPrintF(code, source, "//# sourceURL=source_url");
+  i::OS::SNPrintF(code, source, "", "//# sourceURL=source_url");
   CHECK(CompileRunWithOrigin(code.start(), "url", 0, 0)->IsUndefined());
-  i::OS::SNPrintF(code, source, "//@ sourceURL=source_url");
+  i::OS::SNPrintF(code, source, "", "//@ sourceURL=source_url");
+  CHECK(CompileRunWithOrigin(code.start(), "url", 0, 0)->IsUndefined());
+
+  // More whitespace.
+  i::OS::SNPrintF(code, source, "",
+                  "//#  \t sourceURL \t = \t source_url\t\t  ");
+  CHECK(CompileRunWithOrigin(code.start(), "url", 0, 0)->IsUndefined());
+
+  // Two source URLs
+  i::OS::SNPrintF(code, source,
+                  "//# sourceURL=ignore_this", "//# sourceURL=source_url");
+  CHECK(CompileRunWithOrigin(code.start(), "url", 0, 0)->IsUndefined());
+
+  // Source URL in the middle of the script.
+  i::OS::SNPrintF(code, source, "//# sourceURL=source_url", "");
   CHECK(CompileRunWithOrigin(code.start(), "url", 0, 0)->IsUndefined());
 }