analyzer: fix ICE on METHOD_TYPE (PR 93212)

PR analyzer/93212 reports an ICE when attempting to use -fanalyzer
on a C++ source file.  That isn't supported yet, but the fix is
trivial (handling METHOD_TYPE as well as FUNCTION_TYPE).

gcc/analyzer/ChangeLog:
	PR analyzer/93212
	* region-model.cc (make_region_for_type): Use
	FUNC_OR_METHOD_TYPE_P rather than comparing against FUNCTION_TYPE.
	* region-model.h (function_region::function_region): Likewise.

gcc/analyzer/ChangeLog

 2020-01-14  David Malcolm  <dmalcolm@redhat.com>
 
+	PR analyzer/93212
+	* region-model.cc (make_region_for_type): Use
+	FUNC_OR_METHOD_TYPE_P rather than comparing against FUNCTION_TYPE.
+	* region-model.h (function_region::function_region): Likewise.
+
+2020-01-14  David Malcolm  <dmalcolm@redhat.com>
+
 	* program-state.cc (sm_state_map::clone_with_remapping): Copy
 	m_global_state.
 	(selftest::test_program_state_merging_2): New selftest.

gcc/analyzer/region-model.cc

@@ -5963,7 +5963,7 @@ make_region_for_type (region_id parent_rid, tree type)
   if (TREE_CODE (type) == UNION_TYPE)
     return new union_region (parent_rid, type);
 
-  if (TREE_CODE (type) == FUNCTION_TYPE)
+  if (FUNC_OR_METHOD_TYPE_P (type))
     return new function_region (parent_rid, type);
 
   /* If we have a void *, make a new symbolic region.  */

gcc/analyzer/region-model.h

@@ -1202,7 +1202,7 @@ public:
   function_region (region_id parent_rid, tree type)
   : map_region (parent_rid, type)
   {
-    gcc_assert (TREE_CODE (type) == FUNCTION_TYPE);
+    gcc_assert (FUNC_OR_METHOD_TYPE_P (type));
   }
   function_region (const function_region &other)
   : map_region (other)