Make position the first vertex output varying on DX9 again to work around an NVIDIA driver issue.
Make position the first vertex output varying on DX9 again to work around an NVIDIA driver issue.

TRAC #22688
Signed-off-by: Geoff Lang
Signed-off-by: Shannon Woods
Author: Nicolas Capens

git-svn-id: 7288974629ec06eaf04ee103a0a5f761b9efd9a5@2055 736b8ea6-26fd-11df-bfd4-992fa37f6226

ecoal95/angle,nandhanurrevanth/angle,ppy/angle,mlfarrell/angle,domokit/waterfall,jgcaaprom/android_external_chromium_org_third_party_angle,vvuk/angle,jgcaaprom/android_external_chromium_org_third_party_angle,MIPS/external-chromium_org-third_party-angle,ghostoy/angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,MIPS/external-chromium_org-third_party-angle,jgcaaprom/android_external_chromium_org_third_party_angle,mlfarrell/angle,mrobinson/rust-angle,ghostoy/angle,jgcaaprom/android_external_chromium_org_third_party_angle,crezefire/angle,xin3liang/platform_external_chromium_org_third_party_angle,MIPS/external-chromium_org-third_party-angle,xin3liang/platform_external_chromium_org_third_party_angle,mlfarrell/angle,nandhanurrevanth/angle,nandhanurrevanth/angle,bsergean/angle,xin3liang/platform_external_chromium_org_third_party_angle,csa7mdm/angle,mikolalysenko/angle,mrobinson/rust-angle,larsbergstrom/angle,mrobinson/rust-angle,csa7mdm/angle,xin3liang/platform_external_chromium_org_third_party_angle,ppy/angle,mikolalysenko/angle,ghostoy/angle,ppy/angle,mybios/angle,android-ia/platform_external_chromium_org_third_party_angle,MSOpenTech/angle,android-ia/platform_external_chromium_org_third_party_angle,MSOpenTech/angle,android-ia/platform_external_chromium_org_third_party_angle,mybios/angle,larsbergstrom/angle,MIPS/external-chromium_org-third_party-angle,ecoal95/angle,bsergean/angle,ghostoy/angle,mybios/angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,android-ia/platform_external_chromium_org_third_party_angle,mikolalysenko/angle,larsbergstrom/angle,ecoal95/angle,csa7mdm/angle,larsbergstrom/angle,mybios/angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,domokit/waterfall,crezefire/angle,ecoal95/angle,nandhanurrevanth/angle,MSOpenTech/angle,ppy/angle,vvuk/angle,mrobinson/rust-angle,mrobinson/rust-angle,mlfarrell/angle,MSOpenTech/angle,bsergean/angle,crezefire/angle,csa7mdm/angle,crezefire/angle,ecoal95/angle,vvuk/angle,vvuk/angle,bsergean/angle,mikolalysenko/angle