[Clang][Driver][Test] Add test to check unsupported options

For now this is done only for the problematic options but it could
be automatically generated for all driver modes and all unsupported
options by parsing tablegen's json output.

Author: Maetveis

clang/test/Driver/unknown-arg-drivermodes.test

@@ -0,0 +1,55 @@
+// RUN: %clang_cl                  \
+// RUN: --config                   \
+// RUN: -fdiagnostics-color=auto   \
+// RUN: -fno-record-command-line   \
+// RUN: -frecord-command-line      \
+// RUN: -nodefaultlibs             \
+// RUN: -nostdlib                  \
+// RUN: -rpath                     \
+// RUN: -shared                    \
+// RUN: -static                    \
+// RUN: -stdlib                    \
+// RUN: -Xlinker                   \
+// RUN: -Xoffload-linker           \
+// RUN: -### -x c++ -c - < /dev/null 2>&1 | FileCheck %s --check-prefix=CL
+
+// RUN: not %clang_dxc             \
+// RUN: --config                   \
+// RUN: -fdiagnostics-color=auto   \
+// RUN: -fno-record-command-line   \
+// RUN: -frecord-command-line      \
+// RUN: -nodefaultlibs             \
+// RUN: -nostdlib                  \
+// RUN: -rpath                     \
+// RUN: -shared                    \
+// RUN: -static                    \
+// RUN: -stdlib                    \
+// RUN: -Xlinker                   \
+// RUN: -Xoffload-linker           \
+// RUN: -### -T lib_6_3 -Vd - < /dev/null 2>&1 | FileCheck %s --check-prefix=DXC
+
+// CL: warning: unknown argument ignored in clang-cl: '--config'
+// CL: warning: unknown argument ignored in clang-cl: '-fdiagnostics-color=auto'
+// CL: warning: unknown argument ignored in clang-cl: '-fno-record-command-line'
+// CL: warning: unknown argument ignored in clang-cl: '-frecord-command-line'
+// CL: warning: unknown argument ignored in clang-cl: '-nodefaultlibs'
+// CL: warning: unknown argument ignored in clang-cl: '-nostdlib'
+// CL: warning: unknown argument ignored in clang-cl: '-rpath'
+// CL: warning: unknown argument ignored in clang-cl: '-shared'
+// CL: warning: unknown argument ignored in clang-cl: '-static'
+// CL: warning: unknown argument ignored in clang-cl: '-stdlib'
+// CL: warning: unknown argument ignored in clang-cl: '-Xlinker'
+// CL: warning: unknown argument ignored in clang-cl: '-Xoffload-linker'
+
+// DXC: error: unknown argument: '--config'
+// DXC: error: unknown argument: '-fdiagnostics-color=auto'
+// DXC: error: unknown argument: '-fno-record-command-line'
+// DXC: error: unknown argument: '-frecord-command-line'
+// DXC: error: unknown argument: '-nodefaultlibs'
+// DXC: error: unknown argument: '-nostdlib'
+// DXC: error: unknown argument: '-rpath'
+// DXC: error: unknown argument: '-shared'
+// DXC: error: unknown argument: '-static'
+// DXC: error: unknown argument: '-stdlib'
+// DXC: error: unknown argument: '-Xlinker'
+// DXC: error: unknown argument: '-Xoffload-linker'