appveyor: add VS2010 x86 Release VS project job and switch VS2013 to x64

To have a test case for VS2010 after bumping to minimum Vista.

Ref: #18009
Closes #19570

appveyor.sh

@@ -75,7 +75,7 @@ if [ "${BUILD_SYSTEM}" = 'CMake' ]; then
       -DCURL_USE_OPENSSL="${OPENSSL}" \
       -DCURL_USE_LIBPSL=OFF \
       ${options} \
-      || { cat ${root}/_bld/CMakeFiles/CMake* 2>/dev/null; false; }
+      || { cat "${root}"/_bld/CMakeFiles/CMake* 2>/dev/null; false; }
     [ "${APPVEYOR_BUILD_WORKER_IMAGE}" = 'Visual Studio 2013' ] && cd ..
   done
   if [ -d _bld_chkprefill ] && ! diff -u _bld/lib/curl_config.h _bld_chkprefill/lib/curl_config.h; then
@@ -92,9 +92,11 @@ elif [ "${BUILD_SYSTEM}" = 'VisualStudioSolution' ]; then
   (
     cd projects
     ./generate.bat "${VC_VERSION}"
-    msbuild.exe -maxcpucount "-property:Configuration=${PRJ_CFG}" "Windows/${VC_VERSION}/curl-all.sln"
+    msbuild.exe -maxcpucount "-property:Configuration=${PRJ_CFG}" "-property:Platform=${PLAT}" "Windows/${VC_VERSION}/curl-all.sln"
   )
-  curl="build/Win32/${VC_VERSION}/${PRJ_CFG}/curld.exe"
+  [ "${PLAT}" = 'x64' ] && platdir='Win64' || platdir='Win32'
+  [[ "${PRJ_CFG}" = *'Debug'* ]] && binsuffix='d' || binsuffix=''
+  curl="build/${platdir}/${VC_VERSION}/${PRJ_CFG}/curl${binsuffix}.exe"
 fi
 
 find . \( -name '*.exe' -o -name '*.dll' -o -name '*.lib' -o -name '*.pdb' \) -exec file -- '{}' \;

appveyor.yml

@@ -148,10 +148,17 @@ environment:
 
     # generated VisualStudioSolution-based builds
 
-    - job_name: 'VisualStudioSolution VS2013, Debug, x86, Schannel, Build-only'
+    - job_name: 'VisualStudioSolution VS2010, Release, x86, Schannel, Build-only'
+      APPVEYOR_BUILD_WORKER_IMAGE: 'Visual Studio 2013'
+      BUILD_SYSTEM: VisualStudioSolution
+      PRJ_CFG: 'DLL Release - DLL Windows SSPI - DLL WinIDN'
+      PLAT: 'Win32'
+      VC_VERSION: VC10
+    - job_name: 'VisualStudioSolution VS2013, Debug, x64, Schannel, Build-only'
       APPVEYOR_BUILD_WORKER_IMAGE: 'Visual Studio 2015'
       BUILD_SYSTEM: VisualStudioSolution
       PRJ_CFG: 'DLL Debug - DLL Windows SSPI - DLL WinIDN'
+      PLAT: 'x64'
       VC_VERSION: VC12
 
 install: