Webrender: Shader error on OnePlus 2

[mmatyas]

Another shader error on OnePlus 2, on http://en.wikipedia.org/wiki/Rust. I'm suprised, as this is exactly the kind of error I wanted to capture with a shader validator :/

01-19 14:17:07.087 18872 18888 I Adreno  : Error: Input aClipDataIndex location or component conflict with others.
01-19 14:17:07.088 18872 18891 D RustAndroidGlueStdouterr: Failed to link shader program: Error: Input aClipDataIndex location or component conflict with others.
01-19 14:17:07.088 18872 18891 D RustAndroidGlueStdouterr: 
01-19 14:17:07.093 18872 18891 D RustAndroidGlueStdouterr: -- Program link failed - exiting -- (thread <unnamed>, at /build/servo/.cargo/git/checkouts/webrender-c3596abe1cf4f320/2251e98/webrender/src/device.rs:413)
01-19 14:17:07.093 18872 18890 D RustAndroidGlueStdouterr: ERROR:servo: -- Program link failed - exiting --
01-19 14:17:07.094 18872 18888 E Gecko   : mozalloc_abort: Redirecting call to abort() to mozalloc_abort
01-19 14:17:07.094 18872 18890 D RustAndroidGlueStdouterr: fatal runtime error: failed to initiate panic, error 9

[kvark]

@mmatyas Would you be able to see what shader exactly is failing to link?

[sotaroikeda]

I confirmed that #791 fixed this issue on gecko webrender!