Add CompileInfo::GetDebugName()

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index c7de00b858a2b0447f512d1d83f9579a2f22e955..2e8f1076be10c3e25ca73ff011174be1f94e932d 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -199,7 +199,7 @@ class CodeStub BASE_EMBEDDED {
 
   static uint32_t NoCacheKey() { return MajorKeyBits::encode(NoCache); }
 
-  static const char* MajorName(Major major_key, bool allow_unknown_keys);
+  static const char* MajorName(Major major_key);
 
   explicit CodeStub(Isolate* isolate) : minor_key_(0), isolate_(isolate) {}
   virtual ~CodeStub() {}
@@ -316,29 +316,6 @@ class CodeStub BASE_EMBEDDED {
 };
 
 
-// TODO(svenpanne) This class is only used to construct a more or less sensible
-// CompilationInfo for testing purposes, basically pretending that we are
-// currently compiling some kind of code stub. Remove this when the pipeline and
-// testing machinery is restructured in such a way that we don't have to come up
-// with a CompilationInfo out of thin air, although we only need a few parts of
-// it.
-struct FakeStubForTesting : public CodeStub {
-  explicit FakeStubForTesting(Isolate* isolate) : CodeStub(isolate) {}
-
-  // Only used by pipeline.cc's GetDebugName in DEBUG mode.
-  Major MajorKey() const override { return CodeStub::NoCache; }
-
-  CallInterfaceDescriptor GetCallInterfaceDescriptor() const override {
-    return ContextOnlyDescriptor(isolate());
-  }
-
-  Handle<Code> GenerateCode() override {
-    UNREACHABLE();
-    return Handle<Code>();
-  }
-};
-
-
 #define DEFINE_CODE_STUB_BASE(NAME, SUPER)                      \
  public:                                                        \
   NAME(uint32_t key, Isolate* isolate) : SUPER(key, isolate) {} \