[LLDB] Require DIA SDK for testing the PDB plugin-selection setting (#158284)

If LLDB is built without the DIA SDK enabled, then the native plugin is
used regardless of `plugin.symbol-file.pdb.reader` or
`LLDB_USE_NATIVE_PDB_READER`. This made the test fail on Windows when
the DIA SDK was disabled
(#114906 (comment)).

This PR changes the requirement for the test from `target-windows` to
`diasdk` (only used in this test).

Author: Nerixyz

lldb/test/CMakeLists.txt

@@ -250,6 +250,7 @@ llvm_canonicalize_cmake_booleans(
   LLDB_ENABLE_LZMA
   LLVM_ENABLE_ZLIB
   LLVM_ENABLE_SHARED_LIBS
+  LLVM_ENABLE_DIA_SDK
   LLDB_HAS_LIBCXX
   LLDB_TEST_SHELL_DISABLE_REMOTE
   LLDB_TOOL_LLDB_SERVER_BUILD

lldb/test/Shell/SymbolFile/PDB/native-setting.cpp

@@ -1,4 +1,4 @@
-// REQUIRES: target-windows
+// REQUIRES: diasdk
 
 // Test plugin.symbol-file.pdb.reader setting
 // RUN: %build -o %t.exe -- %s

lldb/test/Shell/lit.cfg.py

@@ -170,6 +170,9 @@ def calculate_arch_features(arch_string):
             )
         )
 
+if config.have_dia_sdk:
+    config.available_features.add("diasdk")
+
 # NetBSD permits setting dbregs either if one is root
 # or if user_set_dbregs is enabled
 can_set_dbregs = True

lldb/test/Shell/lit.site.cfg.py.in

@@ -34,6 +34,7 @@ config.have_lldb_server = @LLDB_TOOL_LLDB_SERVER_BUILD@
 config.lldb_system_debugserver = @LLDB_USE_SYSTEM_DEBUGSERVER@
 config.llvm_use_sanitizer = "@LLVM_USE_SANITIZER@"
 config.lldb_has_lldbrpc = @LLDB_BUILD_LLDBRPC@
+config.have_dia_sdk = @LLVM_ENABLE_DIA_SDK@
 # The shell tests use their own module caches.
 config.lldb_module_cache = os.path.join("@LLDB_TEST_MODULE_CACHE_LLDB@", "lldb-shell")
 config.clang_module_cache = os.path.join("@LLDB_TEST_MODULE_CACHE_CLANG@", "lldb-shell")