FindTypes should find "struct TypeName" as well as "TypeName".

This fixes a bug introduced by r291559.  The Module's FindType was 
passing the original name not the basename in the case where it didn't
find any separators.  I also added a testcase for this.

<rdar://problem/31159173>

llvm-svn: 298331

lldb/packages/Python/lldbsuite/test/lang/c/find_struct_type/Makefile

@@ -0,0 +1,3 @@
+LEVEL = ../../../make
+C_SOURCES := main.c
+include $(LEVEL)/Makefile.rules

lldb/packages/Python/lldbsuite/test/lang/c/find_struct_type/TestFindStructTypes.py

@@ -0,0 +1,67 @@
+"""
+Make sure FindTypes finds struct types with the struct prefix.
+"""
+
+from __future__ import print_function
+
+
+import os
+import time
+import re
+import lldb
+import lldbsuite.test.lldbutil as lldbutil
+from lldbsuite.test.lldbtest import *
+
+
+class TestFindTypesOnStructType(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    # If your test case doesn't stress debug info, the 
+    # set this to true.  That way it won't be run once for
+    # each debug info format.
+    NO_DEBUG_INFO_TESTCASE = True
+
+    def test_find_types_struct_type(self):
+        """Make sure FindTypes actually finds 'struct typename' not just 'typename'."""
+        self.build()
+        self.do_test()
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+
+    def do_test(self):
+        """Make sure FindTypes actually finds 'struct typename' not just 'typename'."""
+        exe = os.path.join(os.getcwd(), "a.out")
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTarget(exe)
+        self.assertTrue(target, VALID_TARGET)
+
+        # Make sure this works with struct
+        type_list = target.FindTypes("struct mytype")
+        self.assertEqual(type_list.GetSize(), 1, "Found one instance of the type with struct")
+
+        # Make sure this works without the struct:
+        type_list = target.FindTypes("mytype")
+        self.assertEqual(type_list.GetSize(), 1, "Found one instance of the type without struct")
+
+        # Make sure it works with union
+        type_list = target.FindTypes("union myunion")
+        self.assertEqual(type_list.GetSize(), 1, "Found one instance of the type with union")
+
+        # Make sure this works without the union:
+        type_list = target.FindTypes("myunion")
+        self.assertEqual(type_list.GetSize(), 1, "Found one instance of the type without union")
+
+        # Make sure it works with typedef
+        type_list = target.FindTypes("typedef MyType")
+        self.assertEqual(type_list.GetSize(), 1, "Found one instance of the type with typedef")
+
+        # Make sure this works without the typedef:
+        type_list = target.FindTypes("MyType")
+        self.assertEqual(type_list.GetSize(), 1, "Found one instance of the type without typedef")
+
+
+

lldb/packages/Python/lldbsuite/test/lang/c/find_struct_type/main.c

@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <stdlib.h>
+struct mytype {
+  int c;
+  int d;
+};
+
+union myunion {
+  int num;
+  char *str;
+};
+
+typedef struct mytype MyType;
+
+int main()
+{
+  struct mytype v;
+  MyType *v_ptr = &v;
+
+  union myunion u = {5};
+  v.c = u.num;
+  v.d = 10;
+  return v.c + v.d;
+}
+

lldb/source/Core/Module.cpp

@@ -1032,7 +1032,7 @@ size_t Module::FindTypes(
       // The "type_name_cstr" will have been modified if we have a valid type
       // class
       // prefix (like "struct", "class", "union", "typedef" etc).
-      FindTypes_Impl(sc, ConstString(type_name_cstr), nullptr, append,
+      FindTypes_Impl(sc, ConstString(type_basename), nullptr, append,
                      max_matches, searched_symbol_files, typesmap);
       typesmap.RemoveMismatchedTypes(type_class);
       num_matches = typesmap.GetSize();