split using stage 2 tests only

Author: marcoieni

src/bootstrap/mk/Makefile.in

@@ -112,8 +112,11 @@ ci-msvc: ci-msvc-py ci-msvc-ps1
 # Used to split tests across multiple CI runners.
 TESTS_IN_MINGW_2 := \
 	tests/ui \
-	rust-analyzer \
-	cargo
+	tests/rustdoc \
+	tests/run-make \
+	tests/rustdoc-ui \
+	tests/ui-fulldeps \
+	tests/rustdoc-json
 
 # test both x and bootstrap entrypoints
 ci-mingw-x: