Rename EmitCalledFunction.h to emit-called-function.h.

Author: martinboehme

test/Interop/Cxx/function/Inputs/EmitCalledFunction.h renamed to test/Interop/Cxx/function/Inputs/emit-called-function.h

@@ -1,4 +1,4 @@
 module EmitCalledFunction {
-  header "EmitCalledFunction.h"
+  header "emit-called-function.h"
   export *
 }