swift234

[SILParser] Handle overloaded members for protocol_method and dynamic_method.

We print the AST type for the member when printing SILDeclRef for
protocol_method and dynamic_method. The AST type can be polymorphic, so parsing
of PolymorphicFunctionType is added to the Parser. Also add parsing "inout"
right before an identifier type. "inout" was parsed only in parseTypeTupleBody.

rdar://15763213


Swift SVN r16460