build: ensure that we build swift-apis in the correct variant

Ensure that we explicitly configure the build type for the swift-apis
build when building the toolchain.  This ensures that we do not end up
with debug mode binaries.

Author: compnerd

utils/swift_build_support/swift_build_support/products/tensorflow.py

@@ -64,6 +64,8 @@ def build(self, host_target):
                 self.toolchain.cmake,
                 '-G', 'Ninja',
                 '-D', 'BUILD_SHARED_LIBS=YES',
+                '-D', 'CMAKE_BUILD_TYPE={}'.format(
+                    'Release' if self.is_release() else 'Debug'),
                 '-D', 'CMAKE_INSTALL_PREFIX={}'.format(
                     self.install_toolchain_path(host_target)),
                 '-D', 'CMAKE_MAKE_PROGRAM={}'.format(self.toolchain.ninja),