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

The state here should be NO_REGISTERS.  It was spuriously changed to from
NO_REGISTERS to TOS_REG when TOS_EAX was renamed to TOS_REG.

BUG=v8:1113

Review URL: http://codereview.chromium.org/6452007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6682 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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);