Reland 2 "Keep a canonical list of shared function infos."

src/x87/full-codegen-x87.cc

Index: src/x87/full-codegen-x87.cc
diff --git a/src/x87/full-codegen-x87.cc b/src/x87/full-codegen-x87.cc
index 683eae91cc7107794bdbca70ea4b1c9ea3fcf3f9..450953aba7973a137e6b997e3b8e62bd8cf84bc3 100644
--- a/src/x87/full-codegen-x87.cc
+++ b/src/x87/full-codegen-x87.cc
@@ -867,7 +867,7 @@ void FullCodeGenerator::VisitFunctionDeclaration(
     case Variable::UNALLOCATED: {
       globals_->Add(variable->name(), zone());
       Handle<SharedFunctionInfo> function =
-          Compiler::BuildFunctionInfo(declaration->fun(), script(), info_);
+          Compiler::GetSharedFunctionInfo(declaration->fun(), script(), info_);
       // Check for stack-overflow exception.
       if (function.is_null()) return SetStackOverflow();
       globals_->Add(function, zone());