Drop the non-interface types from SILFunctionType.

There are some straggling references to the context generic param list, but nothing uses the non-interface param or result types anymore!

Swift SVN r13725

include/swift/SIL/SILType.h

@@ -164,9 +164,6 @@ public:
   
   /// Returns the Swift return type of a function type.
   /// The SILType must refer to a function type.
-  SILType getFunctionResultType() const SIL_FUNCTION_TYPE_DEPRECATED {
-    return castTo<SILFunctionType>()->getSemanticResultSILType();
-  }
   SILType getFunctionInterfaceResultType() const {
     return castTo<SILFunctionType>()->getSemanticInterfaceResultSILType();
   }
@@ -373,10 +370,6 @@ inline llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, SILType T) {
   return OS;
 }
 
-inline SILType SILFunctionType::getSILParameter(unsigned i) const {
-  return getParameters()[i].getSILType();
-}
-
 inline SILType SILFunctionType::getSILInterfaceParameter(unsigned i) const {
   return getInterfaceParameters()[i].getSILType();
 }
@@ -394,10 +387,6 @@ SILFunctionType::getParameterSILType(const SILParameterInfo &param) {
   return param.getSILType();
 }
 
-inline SILType SILFunctionType::getSILResult() const {
-  return getResult().getSILType();
-}
-
 inline SILType SILFunctionType::getSILInterfaceResult() const {
   return getInterfaceResult().getSILType();
 }
@@ -406,11 +395,6 @@ inline SILType SILResultInfo::getSILType() const {
   return SILType::getPrimitiveObjectType(getType());
 }
 
-inline SILType SILFunctionType::getSemanticResultSILType() const {
-  return (hasIndirectResult() ? getIndirectResult().getSILType()
-                              : getResult().getSILType());
-}  
-
 inline SILType SILFunctionType::getSemanticInterfaceResultSILType() const {
   return (hasIndirectResult() ? getIndirectInterfaceResult().getSILType()
                               : getInterfaceResult().getSILType());