Disallow arbitrary custom inline asm constraints for msp430.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84219 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 1d4d123..5337615 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -1573,8 +1573,8 @@
     }
     virtual bool validateAsmConstraint(const char *&Name,
                                        TargetInfo::ConstraintInfo &info) const {
-      // FIXME: implement
-      return true;
+      // No target constraints for now.
+      return false;
     }
     virtual const char *getClobbers() const {
       // FIXME: Is this really right?