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

llvm-svn: 71125
diff --git a/clang/lib/Frontend/PCHReader.cpp b/clang/lib/Frontend/PCHReader.cpp
index 949d02a..9323620 100644
--- a/clang/lib/Frontend/PCHReader.cpp
+++ b/clang/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: