I'm curious about Googling "syntax" here. 

My suspicion (and fear) is that we're not talking about what parameters a call takes (because most IDEs will prompt you there so you wouldn't Google them) but actual "how to do X" type things. 

IDEs have made it unnecessary to memorise precise names and parameter lists in the way that used to be required and that's made many people a bit lazy about it but that's fine.

But something you need to Google? To me that's usually not syntax, that's just something you either don't really know or are only passingly familiar with.

Of course that's not to say it's wrong to have to Google stuff - languages can be pretty broad these days and few people know everything but I would say that if you claim to be competent with a language then Google should be the exception rather than the rule. 

For me unless you're doing something relatively unusual, or perhaps you're rusty with the language after a period of doing something different, but if you claim to "know" a language, you shouldn't be Googling more than 10% of stuff at most, and that should be really quite specific stuff.