Fix order of include flags for the target & regular include paths. (#93547)

The target include directory should always  come first,
since the regular includes are dependent on it

Author: EricWF

libcxx/test/configs/llvm-libc++-android-ndk.cfg.in

@@ -16,7 +16,7 @@ config.substitutions.append(('%{flags}',
     '--sysroot @CMAKE_SYSROOT@' if '@CMAKE_SYSROOT@' else ''
 ))
 
-compile_flags = '-nostdinc++ -I %{include-dir} -I %{target-include-dir} -I %{libcxx-dir}/test/support'
+compile_flags = '-nostdinc++ -I %{target-include-dir} -I %{include-dir} -I %{libcxx-dir}/test/support'
 if re.match(r'i686-linux-android(21|22|23)$', config.target_triple):
     # 32-bit x86 Android has a bug where the stack is sometimes misaligned.
     # The problem appears limited to versions before Android N (API 24) and only

libcxx/test/configs/llvm-libc++-mingw.cfg.in

@@ -5,7 +5,7 @@ lit_config.load_config(config, '@CMAKE_CURRENT_BINARY_DIR@/cmake-bridge.cfg')
 
 config.substitutions.append(('%{flags}', ''))
 config.substitutions.append(('%{compile_flags}',
-    '-nostdinc++ -I %{include-dir} -I %{target-include-dir} -I %{libcxx-dir}/test/support'
+    '-nostdinc++ -I %{target-include-dir} -I %{include-dir} -I %{libcxx-dir}/test/support'
 ))
 config.substitutions.append(('%{link_flags}',
     '-nostdlib++ -L %{lib-dir} -lc++'

libcxx/test/configs/llvm-libc++-shared-clangcl.cfg.in

@@ -5,7 +5,7 @@ lit_config.load_config(config, '@CMAKE_CURRENT_BINARY_DIR@/cmake-bridge.cfg')
 
 config.substitutions.append(('%{flags}', '--driver-mode=g++'))
 config.substitutions.append(('%{compile_flags}',
-    '-fms-runtime-lib=' + config.fms_runtime_lib + ' -nostdinc++ -I %{include-dir} -I %{target-include-dir} -I %{libcxx-dir}/test/support -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS -D_CRT_STDIO_ISO_WIDE_SPECIFIERS -DNOMINMAX' + config.dbg_include
+    '-fms-runtime-lib=' + config.fms_runtime_lib + ' -nostdinc++ -I %{target-include-dir} -I %{include-dir} -I %{libcxx-dir}/test/support -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS -D_CRT_STDIO_ISO_WIDE_SPECIFIERS -DNOMINMAX' + config.dbg_include
 ))
 config.substitutions.append(('%{link_flags}',
     '-nostdlib -L %{lib-dir} -lc++ -l' + config.cxx_lib

libcxx/test/configs/llvm-libc++-shared-gcc.cfg.in

@@ -6,7 +6,7 @@ lit_config.load_config(config, '@CMAKE_CURRENT_BINARY_DIR@/cmake-bridge.cfg')
 
 config.substitutions.append(('%{flags}', '-pthread'))
 config.substitutions.append(('%{compile_flags}',
-    '-nostdinc++ -I %{include-dir} -I %{target-include-dir} -I %{libcxx-dir}/test/support'
+    '-nostdinc++ -I %{target-include-dir} -I %{include-dir} -I %{libcxx-dir}/test/support'
 ))
 config.substitutions.append(('%{link_flags}',
     '-nostdlib++ -L %{lib-dir} -Wl,-rpath,%{lib-dir} -lc++ -lm'

libcxx/test/configs/llvm-libc++-shared.cfg.in

@@ -7,7 +7,7 @@ config.substitutions.append(('%{flags}',
     '-pthread' + (' -isysroot {}'.format('@CMAKE_OSX_SYSROOT@') if '@CMAKE_OSX_SYSROOT@' else '')
 ))
 config.substitutions.append(('%{compile_flags}',
-    '-nostdinc++ -I %{include-dir} -I %{target-include-dir} -I %{libcxx-dir}/test/support'
+    '-nostdinc++ -I %{target-include-dir} -I %{include-dir} -I %{libcxx-dir}/test/support'
 ))
 config.substitutions.append(('%{link_flags}',
     '-nostdlib++ -L %{lib-dir} -Wl,-rpath,%{lib-dir} -lc++'

libcxx/test/configs/llvm-libc++-static-clangcl.cfg.in

@@ -5,7 +5,7 @@ lit_config.load_config(config, '@CMAKE_CURRENT_BINARY_DIR@/cmake-bridge.cfg')
 
 config.substitutions.append(('%{flags}', '--driver-mode=g++'))
 config.substitutions.append(('%{compile_flags}',
-    '-fms-runtime-lib=' + config.fms_runtime_lib + ' -nostdinc++ -I %{include-dir} -I %{target-include-dir} -I %{libcxx-dir}/test/support -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS -D_CRT_STDIO_ISO_WIDE_SPECIFIERS -DNOMINMAX' + config.dbg_include
+    '-fms-runtime-lib=' + config.fms_runtime_lib + ' -nostdinc++ -I %{target-include-dir} -I %{include-dir} -I %{libcxx-dir}/test/support -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS -D_CRT_STDIO_ISO_WIDE_SPECIFIERS -DNOMINMAX' + config.dbg_include
 ))
 config.substitutions.append(('%{link_flags}',
     '-nostdlib -L %{lib-dir} -llibc++ -l' + config.cxx_lib