[WebAssembly] Restore "*-wasm" tests.

Even though "...-wasm" is now the default for wasm, it's still
desirable to test this form.

llvm-svn: 325273
diff --git a/llvm/unittests/ADT/TripleTest.cpp b/llvm/unittests/ADT/TripleTest.cpp
index 4d4538d..57635d6 100644
--- a/llvm/unittests/ADT/TripleTest.cpp
+++ b/llvm/unittests/ADT/TripleTest.cpp
@@ -1030,6 +1030,11 @@
   EXPECT_EQ(Triple::Wasm, Triple("wasm32-unknown-unknown").getObjectFormat());
   EXPECT_EQ(Triple::Wasm, Triple("wasm64-unknown-unknown").getObjectFormat());
 
+  EXPECT_EQ(Triple::Wasm,
+            Triple("wasm32-unknown-unknown-wasm").getObjectFormat());
+  EXPECT_EQ(Triple::Wasm,
+            Triple("wasm64-unknown-unknown-wasm").getObjectFormat());
+
   EXPECT_EQ(Triple::ELF,
             Triple("wasm32-unknown-unknown-elf").getObjectFormat());
   EXPECT_EQ(Triple::ELF,