tests: Change BIL to SPV in golden image filenames

diff --git a/tests/golden/BIL_GreenTriangle.ppm b/tests/golden/SPV_GreenTriangle.ppm
similarity index 100%
rename from tests/golden/BIL_GreenTriangle.ppm
rename to tests/golden/SPV_GreenTriangle.ppm

diff --git a/tests/golden/BIL_XGLTriangle-2.ppm b/tests/golden/SPV_XGLTriangle-2.ppm
similarity index 100%
rename from tests/golden/BIL_XGLTriangle-2.ppm
rename to tests/golden/SPV_XGLTriangle-2.ppm

diff --git a/tests/golden/BIL_XGLTriangle-3.ppm b/tests/golden/SPV_XGLTriangle-3.ppm
similarity index 100%
rename from tests/golden/BIL_XGLTriangle-3.ppm
rename to tests/golden/SPV_XGLTriangle-3.ppm

diff --git a/tests/golden/BIL_XGLTriangle-4.ppm b/tests/golden/SPV_XGLTriangle-4.ppm
similarity index 100%
rename from tests/golden/BIL_XGLTriangle-4.ppm
rename to tests/golden/SPV_XGLTriangle-4.ppm

diff --git a/tests/golden/BIL_XGLTriangle-5.ppm b/tests/golden/SPV_XGLTriangle-5.ppm
similarity index 100%
rename from tests/golden/BIL_XGLTriangle-5.ppm
rename to tests/golden/SPV_XGLTriangle-5.ppm

diff --git a/tests/golden/BIL_XGLTriangle-6.ppm b/tests/golden/SPV_XGLTriangle-6.ppm
similarity index 100%
rename from tests/golden/BIL_XGLTriangle-6.ppm
rename to tests/golden/SPV_XGLTriangle-6.ppm

diff --git a/tests/golden/BIL_XGLTriangle-7.ppm b/tests/golden/SPV_XGLTriangle-7.ppm
similarity index 100%
rename from tests/golden/BIL_XGLTriangle-7.ppm
rename to tests/golden/SPV_XGLTriangle-7.ppm

diff --git a/tests/golden/BIL_XGLTriangle-8.ppm b/tests/golden/SPV_XGLTriangle-8.ppm
similarity index 100%
rename from tests/golden/BIL_XGLTriangle-8.ppm
rename to tests/golden/SPV_XGLTriangle-8.ppm

diff --git a/tests/golden/BIL_XGLTriangle-9.ppm b/tests/golden/SPV_XGLTriangle-9.ppm
similarity index 100%
rename from tests/golden/BIL_XGLTriangle-9.ppm
rename to tests/golden/SPV_XGLTriangle-9.ppm

diff --git a/tests/golden/BIL_XGLTriangle.ppm b/tests/golden/SPV_XGLTriangle.ppm
similarity index 100%
rename from tests/golden/BIL_XGLTriangle.ppm
rename to tests/golden/SPV_XGLTriangle.ppm