[coverage] Block coverage with support for IfStatements

src/factory.h

Index: src/factory.h
diff --git a/src/factory.h b/src/factory.h
index 81462055593acb61d6fe66a0740a5a8b51fffacd..27a7ebc1466008dc7c87e79ddc6518754e179a0c 100644
--- a/src/factory.h
+++ b/src/factory.h
@@ -19,6 +19,7 @@ namespace internal {
 
 class BoilerplateDescription;
 class ConstantElementsPair;
+struct SourceRange;
 
 enum FunctionMode {
   // With prototype.
@@ -772,6 +773,8 @@ class V8_EXPORT_PRIVATE Factory final {
 
   Handle<DebugInfo> NewDebugInfo(Handle<SharedFunctionInfo> shared);
 
+  Handle<CoverageInfo> NewCoverageInfo(const ZoneVector<SourceRange>& slots);
+
   // Return a map for given number of properties using the map cache in the
   // native context.
   Handle<Map> ObjectLiteralMapFromCache(Handle<Context> native_context,