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 2464157427a9501951f6b3fa86145091ef9244a2..36dc89f7888318a1c6594e5448ded8a545f90419 100644
--- a/src/arm/full-codegen-arm.cc
+++ b/src/arm/full-codegen-arm.cc
@@ -931,7 +931,7 @@ 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());