Debugger: correctly redirect code with no stack check.

src/full-codegen/x87/full-codegen-x87.cc

Index: src/full-codegen/x87/full-codegen-x87.cc
diff --git a/src/full-codegen/x87/full-codegen-x87.cc b/src/full-codegen/x87/full-codegen-x87.cc
index 40b78366bb5f22a6e208fe8c601f8e47d23ac545..00b08777552be6650864a5ee717ee2d0a9621e2a 100644
--- a/src/full-codegen/x87/full-codegen-x87.cc
+++ b/src/full-codegen/x87/full-codegen-x87.cc
@@ -347,6 +347,11 @@ void FullCodeGenerator::Generate() {
       VisitDeclarations(scope()->declarations());
     }
 
+    // Assert that the declarations do not use ICs. Otherwise the debugger
+    // won't be able to redirect a PC at an IC to the correct IC in newly
+    // recompiled code.
+    DCHECK_EQ(0, ic_total_count_);
+
     { Comment cmnt(masm_, "[ Stack check");
       PrepareForBailoutForId(BailoutId::Declarations(), NO_REGISTERS);
       Label ok;