Added Connection::GetURI()

This function returns a URI of the resource that the connection is connected to. This is especially important for connections established by accepting a connection from a remote host.

Also added implementations for ConnectionMachPort, ConnectionSharedMemory, 
Also fixed up some documentation in Connection::Write
Renamed ConnectionFileDescriptorPosix::SocketListen to ConnectionFileDescriptorPosix::SocketListenAndAccept
Fixed a log message in Socket.cpp

Differential Review: http://reviews.llvm.org/D7026

llvm-svn: 226362
diff --git a/lldb/source/Host/windows/ConnectionGenericFileWindows.cpp b/lldb/source/Host/windows/ConnectionGenericFileWindows.cpp
index 6b4c470..bbf3150 100644
--- a/lldb/source/Host/windows/ConnectionGenericFileWindows.cpp
+++ b/lldb/source/Host/windows/ConnectionGenericFileWindows.cpp
@@ -147,6 +147,7 @@
     }
 
     m_owns_file = true;
+    m_uri.assign(s);
     return eConnectionStatusSuccess;
 }
 
@@ -175,6 +176,7 @@
 
     ::ZeroMemory(&m_file_position, sizeof(m_file_position));
     m_owns_file = false;
+    m_uri.clear();
     return eConnectionStatusSuccess;
 }
 
@@ -328,6 +330,12 @@
     return return_info.GetBytes();
 }
 
+std::string
+ConnectionGenericFile::GetURI()
+{
+    return m_uri;
+}
+
 bool
 ConnectionGenericFile::InterruptRead()
 {