FIX panic from the GHC API

In hscFileCheck, initialize md_vect_info with noVectInfo instead of
a panic value, since this is a strict field.

diff --git a/compiler/main/HscMain.lhs b/compiler/main/HscMain.lhs
index d68058d..092d163 100644 (file)
--- a/compiler/main/HscMain.lhs
+++ b/compiler/main/HscMain.lhs
@@ -694,8 +694,7 @@ hscFileCheck hsc_env mod_summary compileToCore = do {
                                md_rules     = [panic "no rules"],
                                   -- Rules are CoreRules, not the
                                   -- RuleDecls we get out of the typechecker
-                                md_vect_info = 
-                                  panic "HscMain.hscFileCheck: no VectInfo"
+                                md_vect_info = noVectInfo
                                    -- VectInfo is added by the Core 
                                    -- vectorisation pass
                           }