Prepare for bailout with the proper state at labeled block entries.

src/full-codegen.cc

Index: src/full-codegen.cc
diff --git a/src/full-codegen.cc b/src/full-codegen.cc
index 4ed3fecfe8738c45ee8577de579a7013fe257a71..252fb9257a9bfdfcabd2ce77b541de233502b8f3 100644
--- a/src/full-codegen.cc
+++ b/src/full-codegen.cc
@@ -913,7 +913,7 @@ void FullCodeGenerator::VisitBlock(Block* stmt) {
   Breakable nested_statement(this, stmt);
   SetStatementPosition(stmt);
 
-  PrepareForBailoutForId(stmt->EntryId(), TOS_REG);
+  PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS);
   VisitStatements(stmt->statements());
   __ bind(nested_statement.break_target());
   PrepareForBailoutForId(stmt->ExitId(), NO_REGISTERS);