Prepare the bridge for C++

Reviewed By: @nicklockwood

Differential Revision: D2432291

React/Base/RCTModuleMethod.m

@@ -50,8 +50,11 @@ typedef BOOL (^RCTArgumentBlock)(RCTBridge *, NSUInteger, id);
   NSArray *_argumentBlocks;
   NSString *_objCMethodName;
   SEL _selector;
+  NSDictionary *_profileArgs;
 }
 
+@synthesize JSMethodName = _JSMethodName;
+
 static void RCTLogArgumentError(RCTModuleMethod *method, NSUInteger index,
                                 id valueOrType, const char *issue)
 {
@@ -370,6 +373,19 @@ void RCTParseObjCMethodName(NSString **objCMethodName, NSArray **arguments)
   return _selector;
 }
 
+- (NSDictionary *)profileArgs
+{
+  if (_profileArgs) {
+    // This sets _selector
+    [self processMethodSignature];
+    _profileArgs = @{
+      @"module": NSStringFromClass(_moduleClass),
+      @"selector": NSStringFromSelector(_selector),
+    };
+  }
+  return _profileArgs;
+}
+
 - (void)invokeWithBridge:(RCTBridge *)bridge
                   module:(id)module
                arguments:(NSArray *)arguments