Merge pull request numpy#14914 from charris/test-3.8-on-windows

WIP, TST: Test with Python3.8 on Windows.

Author: charris

azure-pipelines.yml

@@ -151,6 +151,11 @@ stages:
             PYTHON_ARCH: 'x86'
             TEST_MODE: fast
             BITS: 32
+          Python38-32bit-fast:
+            PYTHON_VERSION: '3.8'
+            PYTHON_ARCH: 'x86'
+            TEST_MODE: fast
+            BITS: 32
           Python35-64bit-full:
             PYTHON_VERSION: '3.5'
             PYTHON_ARCH: 'x64'
@@ -166,6 +171,11 @@ stages:
             PYTHON_ARCH: 'x64'
             TEST_MODE: full
             BITS: 64
+          Python38-64bit-full:
+            PYTHON_VERSION: '3.8'
+            PYTHON_ARCH: 'x64'
+            TEST_MODE: full
+            BITS: 64
     steps:
     - template: azure-steps-windows.yml
   - job: Linux_PyPy3