Back out r70506 (exception spec in AST) again. We won't have exception specs until we've had a lot more discussion.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71125 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReader.cpp b/lib/Frontend/PCHReader.cpp
index 949d02a..9323620 100644
--- a/lib/Frontend/PCHReader.cpp
+++ b/lib/Frontend/PCHReader.cpp
@@ -1584,16 +1584,8 @@
       ParamTypes.push_back(GetType(Record[Idx++]));
     bool isVariadic = Record[Idx++];
     unsigned Quals = Record[Idx++];
-    bool hasExceptionSpec = Record[Idx++];
-    bool hasAnyExceptionSpec = Record[Idx++];
-    unsigned NumExceptions = Record[Idx++];
-    llvm::SmallVector<QualType, 2> Exceptions;
-    for (unsigned I = 0; I != NumExceptions; ++I)
-      Exceptions.push_back(GetType(Record[Idx++]));
     return Context->getFunctionType(ResultType, &ParamTypes[0], NumParams,
-                                    isVariadic, Quals, hasExceptionSpec,
-                                    hasAnyExceptionSpec, NumExceptions,
-                                    &Exceptions[0]);
+                                    isVariadic, Quals);
   }
 
   case pch::TYPE_TYPEDEF:
diff --git a/lib/Frontend/PCHWriter.cpp b/lib/Frontend/PCHWriter.cpp
index 9b14a94..dacb2cd 100644
--- a/lib/Frontend/PCHWriter.cpp
+++ b/lib/Frontend/PCHWriter.cpp
@@ -161,11 +161,6 @@
     Writer.AddTypeRef(T->getArgType(I), Record);
   Record.push_back(T->isVariadic());
   Record.push_back(T->getTypeQuals());
-  Record.push_back(T->hasExceptionSpec());
-  Record.push_back(T->hasAnyExceptionSpec());
-  Record.push_back(T->getNumExceptions());
-  for (unsigned I = 0, N = T->getNumExceptions(); I != N; ++I)
-    Writer.AddTypeRef(T->getExceptionType(I), Record);
   Code = pch::TYPE_FUNCTION_PROTO;
 }