can't compile for Node v7.2.2

[nickdesaulniers]

➜  node-nanomsg git:(master) ✗ node -v
v7.2.1
➜  node-nanomsg git:(master) ✗ npm install memwatch

> [email protected] install /Users/wangstabill/Code/nodejs/node-nanomsg/node_modules/memwatch
> node-gyp rebuild

gyp WARN download NVM_NODEJS_ORG_MIRROR is deprecated and will be removed in node-gyp v4, please use NODEJS_ORG_MIRROR
gyp WARN download NVM_NODEJS_ORG_MIRROR is deprecated and will be removed in node-gyp v4, please use NODEJS_ORG_MIRROR
gyp WARN download NVM_NODEJS_ORG_MIRROR is deprecated and will be removed in node-gyp v4, please use NODEJS_ORG_MIRROR
  CXX(target) Release/obj.target/memwatch/src/heapdiff.o
In file included from ../src/heapdiff.cc:5:
../src/heapdiff.hh:14:35: error: expected class name
    class HeapDiff : public node::ObjectWrap
                                  ^
../src/heapdiff.hh:19:49: error: no type named 'Arguments' in namespace 'v8'; did you mean 'v8::internal::Arguments'?
        static v8::Handle<v8::Value> New( const v8::Arguments& args );
                                                ^~~~~~~~~~~~~
                                                v8::internal::Arguments
/Users/wangstabill/.node-gyp/7.2.1/include/node/v8.h:148:7: note: 'v8::internal::Arguments' declared here
class Arguments;
      ^
In file included from ../src/heapdiff.cc:5:
../src/heapdiff.hh:20:49: error: no type named 'Arguments' in namespace 'v8'; did you mean 'v8::internal::Arguments'?
        static v8::Handle<v8::Value> End( const v8::Arguments& args );
                                                ^~~~~~~~~~~~~
                                                v8::internal::Arguments
/Users/wangstabill/.node-gyp/7.2.1/include/node/v8.h:148:7: note: 'v8::internal::Arguments' declared here
class Arguments;
      ^
../src/heapdiff.cc:30:34: error: member initializer 'ObjectWrap' does not name a non-static data member or base class
heapdiff::HeapDiff::HeapDiff() : ObjectWrap(), before(NULL), after(NULL),
                                 ^~~~~~~~~~~~
../src/heapdiff.cc:51:21: error: calling a protected constructor of class 'v8::HandleScope'
    v8::HandleScope scope;
                    ^
/Users/wangstabill/.node-gyp/7.2.1/include/node/v8.h:882:13: note: declared protected here
  V8_INLINE HandleScope() {}
            ^
../src/heapdiff.cc:52:67: error: cannot initialize a parameter of type 'v8::Isolate *' with an lvalue of type 'v8::Handle<v8::Value> (const v8::internal::Arguments &)' (aka
      'v8::Local<v8::Value> (const v8::internal::Arguments &)')
    v8::Local<v8::FunctionTemplate> t = v8::FunctionTemplate::New(New);
                                                                  ^~~
/Users/wangstabill/.node-gyp/7.2.1/include/node/v8.h:4511:16: note: passing argument to parameter 'isolate' here
      Isolate* isolate, FunctionCallback callback = 0,
               ^
../src/heapdiff.cc:54:29: error: no member named 'NewSymbol' in 'v8::String'
    t->SetClassName(String::NewSymbol("HeapDiff"));
                    ~~~~~~~~^
../src/heapdiff.cc:56:41: error: cannot initialize a parameter of type 'v8::FunctionCallback' (aka 'void (*)(const FunctionCallbackInfo<v8::Value> &)') with an lvalue of type
      'v8::Handle<v8::Value> (const v8::internal::Arguments &)' (aka 'v8::Local<v8::Value> (const v8::internal::Arguments &)'): type mismatch at 1st parameter
      ('const FunctionCallbackInfo<v8::Value> &' vs 'const v8::internal::Arguments &')
    NODE_SET_PROTOTYPE_METHOD(t, "end", End);
                                        ^~~
/Users/wangstabill/.node-gyp/7.2.1/include/node/node.h:269:60: note: passing argument to parameter 'callback' here
                                      v8::FunctionCallback callback) {
                                                           ^
../src/heapdiff.cc:58:29: error: no member named 'NewSymbol' in 'v8::String'
    target->Set(v8::String::NewSymbol( "HeapDiff"), t->GetFunction());
                ~~~~~~~~~~~~^
../src/heapdiff.cc:62:32: error: no type named 'Arguments' in namespace 'v8'; did you mean 'v8::internal::Arguments'?
heapdiff::HeapDiff::New (const v8::Arguments& args)
                               ^~~~~~~~~~~~~
                               v8::internal::Arguments
/Users/wangstabill/.node-gyp/7.2.1/include/node/v8.h:148:7: note: 'v8::internal::Arguments' declared here
class Arguments;
      ^
../src/heapdiff.cc:67:14: error: member access into incomplete type 'const v8::internal::Arguments'
    if (!args.IsConstructCall()) {
             ^
/Users/wangstabill/.node-gyp/7.2.1/include/node/v8.h:148:7: note: forward declaration of 'v8::internal::Arguments'
class Arguments;
      ^
../src/heapdiff.cc:70:25: error: no member named 'New' in 'v8::String'
                String::New("Use the new operator to create instances of this object.")));
                ~~~~~~~~^
../src/heapdiff.cc:73:21: error: calling a protected constructor of class 'v8::HandleScope'
    v8::HandleScope scope;
                    ^
/Users/wangstabill/.node-gyp/7.2.1/include/node/v8.h:882:13: note: declared protected here
  V8_INLINE HandleScope() {}
            ^
../src/heapdiff.cc:77:11: error: no member named 'Wrap' in 'heapdiff::HeapDiff'
    self->Wrap(args.This());
    ~~~~  ^
../src/heapdiff.cc:77:20: error: member access into incomplete type 'const v8::internal::Arguments'
    self->Wrap(args.This());
                   ^
/Users/wangstabill/.node-gyp/7.2.1/include/node/v8.h:148:7: note: forward declaration of 'v8::internal::Arguments'
class Arguments;
      ^
../src/heapdiff.cc:82:38: error: no member named 'TakeSnapshot' in 'v8::HeapProfiler'
    self->before = v8::HeapProfiler::TakeSnapshot(v8::String::New(""));
                   ~~~~~~~~~~~~~~~~~~^
../src/heapdiff.cc:82:63: error: no member named 'New' in 'v8::String'
    self->before = v8::HeapProfiler::TakeSnapshot(v8::String::New(""));
                                                  ~~~~~~~~~~~~^
../src/heapdiff.cc:85:16: error: member access into incomplete type 'const v8::internal::Arguments'
    return args.This();
               ^
/Users/wangstabill/.node-gyp/7.2.1/include/node/v8.h:148:7: note: forward declaration of 'v8::internal::Arguments'
class Arguments;
      ^
../src/heapdiff.cc:97:21: error: calling a protected constructor of class 'v8::HandleScope'
    v8::HandleScope scope;
                    ^
/Users/wangstabill/.node-gyp/7.2.1/include/node/v8.h:882:13: note: declared protected here
  V8_INLINE HandleScope() {}
            ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.

looks like v8's internals changed again.