tree 2a5000b27940ddedb659d58279d4e969f97a111b
parent a8c71d522542cb97368d96c59eb03ca30fa9b065
author Goktug Gokdogan <goktug@google.com> 1495592187 -0700
committer Goktug Gokdogan <goktug@google.com> 1495592187 -0700

Add Nonnull to String.valueOf

Otherwise JsCompiler thinks that String.valueOf(a) + 1 might
result in number.

Change-Id: I2954d21c279a430b60ab2aebfdf6586180223dd2