[coverage] Block coverage with support for IfStatements

src/interpreter/bytecode-array-builder.cc

Index: src/interpreter/bytecode-array-builder.cc
diff --git a/src/interpreter/bytecode-array-builder.cc b/src/interpreter/bytecode-array-builder.cc
index 11b1267172f8d6b780b52afaf19e959d3535d359..81e1eca3b5916520fa53cf211c335afdae457504 100644
--- a/src/interpreter/bytecode-array-builder.cc
+++ b/src/interpreter/bytecode-array-builder.cc
@@ -1196,6 +1196,12 @@ BytecodeArrayBuilder& BytecodeArrayBuilder::Debugger() {
   return *this;
 }
 
+BytecodeArrayBuilder& BytecodeArrayBuilder::IncBlockCounter(int slot) {
+  DCHECK(FLAG_block_coverage);
+  OutputIncBlockCounter(slot);
+  return *this;
+}
+
 BytecodeArrayBuilder& BytecodeArrayBuilder::ForInPrepare(
     Register receiver, RegisterList cache_info_triple) {
   DCHECK_EQ(3, cache_info_triple.register_count());