Attempt to work around iOS varying limit in GLPrograms test

Dump shaders when linking fails.

Bug: skia:6627
Change-Id: I7f1df4be039eb56d990aa64c58c8dd2a22d97dbe
Reviewed-on: https://skia-review.googlesource.com/16867
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/gn/tests.gni b/gn/tests.gni
index f63fb75..e6ac245 100644
--- a/gn/tests.gni
+++ b/gn/tests.gni
@@ -91,10 +91,10 @@
   "$_tests/GrContextAbandonTest.cpp",
   "$_tests/GrContextFactoryTest.cpp",
   "$_tests/GrDrawTargetTest.cpp",
-  "$_tests/GrGLSLPrettyPrintTest.cpp",
   "$_tests/GrMemoryPoolTest.cpp",
   "$_tests/GrPorterDuffTest.cpp",
   "$_tests/GrShapeTest.cpp",
+  "$_tests/GrSKSLPrettyPrintTest.cpp",
   "$_tests/GrSurfaceTest.cpp",
   "$_tests/GrTextureMipMapInvalidationTest.cpp",
   "$_tests/GrTRecorderTest.cpp",