Begin using a list of bailouts instead of a singleton in the fast code generator.

src/arm/codegen-arm.h

Index: src/arm/codegen-arm.h
diff --git a/src/arm/codegen-arm.h b/src/arm/codegen-arm.h
index de098d0234aeebd7ea5b843f1c7fc3cd2fa309c4..1a2e5525a2ae49cd5203946303a4cd73cfeabd83 100644
--- a/src/arm/codegen-arm.h
+++ b/src/arm/codegen-arm.h
@@ -150,15 +150,6 @@ class CodeGenState BASE_EMBEDDED {
 
 class CodeGenerator: public AstVisitor {
  public:
-  // Compilation mode.  Either the compiler is used as the primary
-  // compiler and needs to setup everything or the compiler is used as
-  // the secondary compiler for split compilation and has to handle
-  // bailouts.
-  enum Mode {
-    PRIMARY,
-    SECONDARY
-  };
-
   // Takes a function literal, generates code for it. This function should only
   // be called by compiler.cc.
   static Handle<Code> MakeCode(CompilationInfo* info);
@@ -244,7 +235,7 @@ class CodeGenerator: public AstVisitor {
   inline void VisitStatementsAndSpill(ZoneList<Statement*>* statements);
 
   // Main code generation function
-  void Generate(CompilationInfo* info, Mode mode);
+  void Generate(CompilationInfo* info);
 
   // The following are used by class Reference.
   void LoadReference(Reference* ref);