Move Py_buffer_RAII to .h file so SWIG 2 doesnt have to parse it

`struct Py_buffer_RAII` definition uses explicit deleted functions which are not supported by SWIG 2 (only 3).
To get around this I moved this struct to an .h file that is included to avoid being parsed by swig.

Reviewed By: lawrence_danna

Differential Revision: https://reviews.llvm.org/D86381

Author: aadsm

lldb/bindings/python/python-typemaps.h

@@ -0,0 +1,17 @@
+#ifndef LLDB_BINDINGS_PYTHON_PYTHON_TYPEMAPS_H
+#define LLDB_BINDINGS_PYTHON_PYTHON_TYPEMAPS_H
+
+// Defined here instead of a .swig file because SWIG 2 doesn't support
+// explicit deleted functions.
+struct Py_buffer_RAII {
+  Py_buffer buffer = {};
+  Py_buffer_RAII(){};
+  Py_buffer &operator=(const Py_buffer_RAII &) = delete;
+  Py_buffer_RAII(const Py_buffer_RAII &) = delete;
+  ~Py_buffer_RAII() {
+    if (buffer.obj)
+      PyBuffer_Release(&buffer);
+  }
+};
+
+#endif // LLDB_BINDINGS_PYTHON_PYTHON_TYPEMAPS_H

lldb/bindings/python/python-typemaps.swig

@@ -1,5 +1,11 @@
 /* Typemap definitions, to allow SWIG to properly handle 'char**' data types. */
 
+%inline %{
+
+#include "../bindings/python/python-typemaps.h"
+
+%}
+
 %typemap(in) char ** {
   /* Check if is a list  */
   if (PythonList::Check($input)) {
@@ -61,7 +67,7 @@
 
 %typemap(in) lldb::tid_t {
   PythonObject obj = Retain<PythonObject>($input);
-  lldb::tid_t value = unwrapOrSetPythonException(As<unsigned long long>(obj)); 
+  lldb::tid_t value = unwrapOrSetPythonException(As<unsigned long long>(obj));
   if (PyErr_Occurred())
     return nullptr;
   $1 = value;
@@ -476,21 +482,6 @@ bool SetNumberFromPyObject<double>(double &number, PyObject *obj) {
     }
 }
 
-%inline %{
-
-struct Py_buffer_RAII {
-  Py_buffer buffer = {};
-  Py_buffer_RAII() {};
-  Py_buffer &operator=(const Py_buffer_RAII &) = delete;
-  Py_buffer_RAII(const Py_buffer_RAII &) = delete;
-  ~Py_buffer_RAII() {
-    if (buffer.obj)
-      PyBuffer_Release(&buffer);
-  }
-};
-
-%}
-
 // These two pybuffer macros are copied out of swig/Lib/python/pybuffer.i,
 // and fixed so they will not crash if PyObject_GetBuffer fails.
 // https://github.com/swig/swig/issues/1640