[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 be3aee8e1a2079d26a5a3daf86250ec34de1e01e..8c4aba38c95d49ecfc8822f3c4ba3ac5077e8fe8 100644
--- a/src/factory.h
+++ b/src/factory.h
@@ -20,7 +20,9 @@ namespace internal {
 class BreakPointInfo;
 class BoilerplateDescription;
 class ConstantElementsPair;
+class CoverageInfo;
 class DebugInfo;
+struct SourceRange;
 
 enum FunctionMode {
   // With prototype.
@@ -778,6 +780,8 @@ 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,