Actually, use an exception to stop verification.  This gives us much better
error messages because verification stops at the first error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14794 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-as/llvm-as.cpp b/tools/llvm-as/llvm-as.cpp
index 406f3e3..0f16db9 100644
--- a/tools/llvm-as/llvm-as.cpp
+++ b/tools/llvm-as/llvm-as.cpp
@@ -57,9 +57,13 @@
       return 1;
     }
 
-    if (!DisableVerify && verifyModule(*M.get(), PrintMessageAction)) {
+    try {
+      if (!DisableVerify)
+        verifyModule(*M.get(), ThrowExceptionAction);
+    } catch (const std::string &Err) {
       std::cerr << argv[0]
                 << ": assembly parsed, but does not verify as correct!\n";
+      std::cerr << Err;
       return 1;
     }