Add seperate test since linker test is disabled

Author: RAJAGOPALAN-GANGADHARAN

test/Driver/linker-library-with-space.swift

@@ -0,0 +1,18 @@
+// RUN: %swiftc_driver -sdk "" -driver-print-jobs -target x86_64-unknown-linux-gnu -Ffoo -Fsystem car -F cdr -framework bar -Lbaz -lboo -Xlinker -undefined %s 2>&1 > %t.linux.txt
+// RUN: %FileCheck -check-prefix LINUX-lib-flag-space %s < %t.linux.txt
+
+// LINUX-lib-flag-space: swift
+// LINUX-lib-flag-space: -o [[OBJECTFILE:.*]]
+
+// LINUX-lib-flag-space: clang{{(\.exe)?"? }}
+// LINUX-lib-flag-space-DAG: -pie
+// LINUX-lib-flag-space-DAG: [[OBJECTFILE]]
+// LINUX-lib-flag-space-DAG: -lswiftCore
+// LINUX-lib-flag-space-DAG: -L [[STDLIB_PATH:[^ ]+(/|\\\\)lib(/|\\\\)swift(/|\\\\)]]
+// LINUX-lib-flag-space-DAG: -Xlinker -rpath -Xlinker [[STDLIB_PATH]]
+// LINUX-lib-flag-space-DAG: -F foo -iframework car -F cdr
+// LINUX-lib-flag-space-DAG: -framework bar
+// LINUX-lib-flag-space-DAG: -L baz
+// LINUX-lib-flag-space-DAG: -lboo
+// LINUX-lib-flag-space-DAG: -Xlinker -undefined
+// LINUX-lib-flag-space: -o linker