Adding test to cover the correct import of SourceLocation pertaining to a built-in during expression parsing

Summary: This tests a fix in the ASTImpoter.cpp to ensure that we import built-in correctly,
see differential: https://reviews.llvm.org/D58743
Once this change is merged this test should pass and should catch regressions in this feature.

Differential Revision: https://reviews.llvm.org/D58790

llvm-svn: 355525

lldb/packages/Python/lldbsuite/test/expression_command/import_builtin_fileid/Makefile

@@ -0,0 +1,6 @@
+LEVEL = ../../make
+
+OBJC_SOURCES := main.m
+
+include $(LEVEL)/Makefile.rules
+LDFLAGS += -framework Cocoa

lldb/packages/Python/lldbsuite/test/expression_command/import_builtin_fileid/TestImportBuiltinFileID.py

@@ -0,0 +1,27 @@
+"""
+They may be cases where an expression will import SourceLocation and if the
+SourceLocation ends up with a FileID that is a built-in we need to copy that
+buffer over correctly.
+"""
+
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+class TestImportBuiltinFileID(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @skipUnlessDarwin
+    @skipIfDarwinEmbedded
+    @add_test_categories(["gmodules"])
+    def test_import_builtin_fileid(self):
+        self.build()
+
+        lldbutil.run_to_source_breakpoint(self, '// break here',
+                lldb.SBFileSpec("main.m", False))
+
+        self.expect("expr int (*DBG_CGImageGetRenderingIntent)(void *) = ((int (*)(void *))CGImageGetRenderingIntent); DBG_CGImageGetRenderingIntent((void *)0x00000000000000);", 
+                substrs=['$0 = 0'])

lldb/packages/Python/lldbsuite/test/expression_command/import_builtin_fileid/main.m

@@ -0,0 +1,6 @@
+#import <Cocoa/Cocoa.h>
+
+int main(int argc, const char * argv[]) {
+
+    return 0; // break here
+}