Add a testcase for explicit Swift modules

Author: adrian-prantl

lldb/test/API/lang/swift/explicit_modules/Makefile

@@ -0,0 +1,3 @@
+SWIFT_SOURCES := main.swift
+SWIFT_ENABLE_EXPLICIT_MODULES := Yes
+include Makefile.rules

lldb/test/API/lang/swift/explicit_modules/TestSwiftExplicitModules.py

@@ -0,0 +1,18 @@
+import lldb
+from lldbsuite.test.decorators import *
+import lldbsuite.test.lldbtest as lldbtest
+import lldbsuite.test.lldbutil as lldbutil
+import unittest2
+
+
+class TestSwiftExplicitModules(lldbtest.TestBase):
+
+    @swiftTest
+    @expectedFailureAll(bugnumber='rdar://121078994')
+    def test_any_type(self):
+        """Test explicit Swift modules"""
+        self.build()
+        target, process, thread, bkpt = lldbutil.run_to_source_breakpoint(
+            self, 'Set breakpoint here', lldb.SBFileSpec('main.swift'))
+
+        self.expect("expression c", substrs=['hello explicit'])

lldb/test/API/lang/swift/explicit_modules/main.swift

@@ -0,0 +1,10 @@
+class Class {
+  var msg : String = "hello explicit"
+}
+
+func main() {
+  let c = Class()
+  print(c) // Set breakpoint here
+}
+
+main()