[debug] introduce precise binary code coverage.

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index a63255a931090e60b01e5caf48e2747cdc9a7c97..66c5a2ff7ec73874de7874280fd30d7299cfe55b 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -13458,10 +13458,14 @@ Handle<Object> SharedFunctionInfo::GetSourceCodeHarmony() {
 bool SharedFunctionInfo::IsInlineable() {
   // Check that the function has a script associated with it.
   if (!script()->IsScript()) return false;
+  if (GetIsolate()->is_precise_binary_code_coverage() &&
+      !has_reported_binary_coverage()) {
+    // We may miss invocations if this function is inlined.
+    return false;
+  }
   return !optimization_disabled();
 }
 
-
 int SharedFunctionInfo::SourceSize() {
   return end_position() - start_position();
 }