[coverage] Block coverage with support for IfStatements

src/interpreter/bytecode-array-builder.h

Index: src/interpreter/bytecode-array-builder.h
diff --git a/src/interpreter/bytecode-array-builder.h b/src/interpreter/bytecode-array-builder.h
index 155fd24bab4953250cb6a6670523ae4be632c9bd..cb89e2e408255608f3769ce417ad6952ff96367b 100644
--- a/src/interpreter/bytecode-array-builder.h
+++ b/src/interpreter/bytecode-array-builder.h
@@ -390,6 +390,10 @@ class V8_EXPORT_PRIVATE BytecodeArrayBuilder final
   // Debugger.
   BytecodeArrayBuilder& Debugger();
 
+  // Increment the block counter at the given slot. Used for block code coverage
+  // (go/v8-designdoc-block-code-coverage).

[Michael Starzinger, 2017/06/06 11:49:32]

nit: Likewise to my previous comment, no "go" links please.

[jgruber, 2017/06/06 14:52:46]

Done.

+  BytecodeArrayBuilder& IncBlockCounter(int slot);
+
   // Complex flow control.
   BytecodeArrayBuilder& ForInPrepare(Register receiver,
                                      RegisterList cache_info_triple);