Bug 1206247 - Do not collect coverage information if the source has no filename. r=bhackett

js/src/jit-test/tests/coverage/bug1206247.js

@@ -0,0 +1,4 @@
+evaluate("", {
+    fileName: null
+});
+getLcovInfo();

js/src/jsopcode.cpp

@@ -1955,8 +1955,12 @@ GenerateLcovInfo(JSContext* cx, JSCompartment* comp, GenericPrinter& out)
     for (ZonesIter zone(rt, SkipAtoms); !zone.done(); zone.next()) {
         for (ZoneCellIter i(zone, AllocKind::SCRIPT); !i.done(); i.next()) {
             JSScript* script = i.get<JSScript>();
-            if (script->compartment() != comp || !script->isTopLevel())
+            if (script->compartment() != comp ||
+                !script->isTopLevel() ||
+                !script->filename())
+            {
                 continue;
+            }
 
             if (!topScripts.append(script))
                 return false;

js/src/vm/CodeCoverage.cpp

@@ -326,6 +326,10 @@ LCovCompartment::collectCodeCoverageInfo(JSCompartment* comp, JSObject* sso,
 void
 LCovCompartment::collectSourceFile(JSCompartment* comp, ScriptSourceObject* sso)
 {
+    // Do not add sources if there is no file name associated to it.
+    if (!sso->source()->filename())
+        return;
+
     // Skip any operation if we already some out-of memory issues.
     if (outTN_.hadOutOfMemory())
         return;