[WebAssembly] Restore "*-wasm" tests.

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

llvm-svn: 325273

Author: Dan Gohman

llvm/unittests/ADT/TripleTest.cpp

@@ -1030,6 +1030,11 @@ TEST(TripleTest, FileFormat) {
   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,