A small optimization: use static char* array instead of StrVector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51752 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvmc2/Tool.h b/tools/llvmc2/Tool.h
index 4762b1e..93fa5df 100644
--- a/tools/llvmc2/Tool.h
+++ b/tools/llvmc2/Tool.h
@@ -42,10 +42,10 @@
                                    const llvm::sys::Path& outFile,
                                    const InputLanguagesSet& InLangs) const = 0;
 
-    virtual const char* Name() const = 0;
-    virtual StrVector InputLanguages() const = 0;
-    virtual const char* OutputLanguage() const = 0;
-    virtual const char* OutputSuffix() const = 0;
+    virtual const char*  Name() const = 0;
+    virtual const char** InputLanguages() const = 0;
+    virtual const char*  OutputLanguage() const = 0;
+    virtual const char*  OutputSuffix() const = 0;
 
     virtual bool IsLast() const = 0;
     virtual bool IsJoin() const = 0;