Make wasm-toolchain.c test pass on Windows.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@256286 91177308-0d34-0410-b5e6-96231b3b80d8

test/Driver/wasm-toolchain.c

@@ -1,3 +1,3 @@
 // RUN: %clang -### -no-canonical-prefixes -target wasm32-unknown-unknown -x assembler %s 2>&1 | FileCheck -check-prefix=AS_LINK %s
 // AS_LINK: clang{{.*}}" "-cc1as" {{.*}} "-o" "[[temp:[^"]*]]"
-// AS_LINK: lld" "-flavor" "ld" "[[temp]]" "-o" "a.out"
+// AS_LINK: lld{{.*}}" "-flavor" "ld" "[[temp]]" "-o" "a.out"