Enable all angle_end2end_tests targeting OpenGL and OpenGL ES backends.

Added failure supressions and filed bugs for failing tests.

BUG=angleproject:1145
BUG=angleproject:1289
BUG=angleproject:1291
BUG=angleproject:1292
BUG=angleproject:1293
BUG=angleproject:1296

Change-Id: Ida78ba855500fe8a6ce6154d43ee01520330e3b1
Reviewed-on: https://chromium-review.googlesource.com/322695
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
diff --git a/src/tests/gl_tests/IndexBufferOffsetTest.cpp b/src/tests/gl_tests/IndexBufferOffsetTest.cpp
index cc3cb00..5d6e606 100644
--- a/src/tests/gl_tests/IndexBufferOffsetTest.cpp
+++ b/src/tests/gl_tests/IndexBufferOffsetTest.cpp
@@ -151,5 +151,6 @@
                        ES2_D3D11(),
                        ES3_D3D11(),
                        ES2_OPENGL(),
-                       ES3_OPENGL());
-
+                       ES3_OPENGL(),
+                       ES2_OPENGLES(),
+                       ES3_OPENGLES());