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

src/arm/full-codegen-arm.cc

Index: src/arm/full-codegen-arm.cc
diff --git a/src/arm/full-codegen-arm.cc b/src/arm/full-codegen-arm.cc
index 6f1f16a9c35c692cfd376055fc5864f0f289ecf2..6e258256e7c4d9d5e67de16a98ad3803416ac37e 100644
--- a/src/arm/full-codegen-arm.cc
+++ b/src/arm/full-codegen-arm.cc
@@ -933,7 +933,7 @@ 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());