Enable blending for floating point formats

Bug: 27745776
Change-Id: I87bf11473eb45048d6c79d61b2248ac1c07072de
diff --git a/modules/gles31/functional/es31fDrawBuffersIndexedTests.cpp b/modules/gles31/functional/es31fDrawBuffersIndexedTests.cpp
index a8f144c..171d05c 100644
--- a/modules/gles31/functional/es31fDrawBuffersIndexedTests.cpp
+++ b/modules/gles31/functional/es31fDrawBuffersIndexedTests.cpp
@@ -661,7 +661,9 @@
 	else
 		state.fragOps.blendMode = rr::BLENDMODE_NONE;
 
-	if (tcu::getTextureChannelClass(info.getFormat().type) != tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT && tcu::getTextureChannelClass(info.getFormat().type) != tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT)
+	if (tcu::getTextureChannelClass(info.getFormat().type) != tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT
+		&& tcu::getTextureChannelClass(info.getFormat().type) != tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT
+		&& tcu::getTextureChannelClass(info.getFormat().type) != tcu::TEXTURECHANNELCLASS_FLOATING_POINT)
 		state.fragOps.blendMode = rr::BLENDMODE_NONE;
 
 	return state;