[lldb] Add test for swift generic parameterized by C++ types

rdar://100284870

Author: augusto2112

lldb/test/API/lang/swift/cxx_interop/forward/swift-generic-with-cxx-type/Makefile

@@ -0,0 +1,4 @@
+SWIFT_SOURCES := main.swift
+SWIFT_CXX_INTEROP := 1
+SWIFTFLAGS_EXTRAS = -Xcc -I$(SRCDIR) 
+include Makefile.rules

lldb/test/API/lang/swift/cxx_interop/forward/swift-generic-with-cxx-type/TestSwiftGenericWithCxxType.py

@@ -0,0 +1,26 @@
+
+"""
+Test that printing Swift generic types with C++ types parameters works
+"""
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+
+
+class TestSwiftGenericWithCxxType(TestBase):
+
+    @swiftTest
+    def test(self):
+        self.build()
+        self.runCmd('setting set target.experimental.swift-enable-cxx-interop true')
+        _, _, _, _= lldbutil.run_to_source_breakpoint(
+            self, 'Set breakpoint here', lldb.SBFileSpec('main.swift'))
+
+        self.expect('v classWrapper', substrs=['Wrapper<CxxClass>', 't', 'a1 = 10',
+            'a2 = 20', 'a3 = 30'])
+        self.expect('expr classWrapper', substrs=['Wrapper<CxxClass>', 't', 'a1 = 10',
+            'a2 = 20', 'a3 = 30'])
+
+        self.expect('v subclassWrapper', substrs=['Wrapper<CxxSubclass>', 't', 
+            'CxxClass = (a1 = 10, a2 = 20, a3 = 30)', 'a4 = 40'])
+        self.expect('expr subclassWrapper', substrs=['Wrapper<CxxSubclass>', 't', 
+            'CxxClass = (a1 = 10, a2 = 20, a3 = 30)', 'a4 = 40'])

lldb/test/API/lang/swift/cxx_interop/forward/swift-generic-with-cxx-type/main.swift

@@ -0,0 +1,11 @@
+import ReturnsClass
+
+struct Wrapper<T> {
+  let t: T
+}
+func main() {
+  let classWrapper = Wrapper(t: CxxClass())
+  let subclassWrapper = Wrapper(t: CxxSubclass())
+  print(1) // Set breakpoint here
+}
+main()

lldb/test/API/lang/swift/cxx_interop/forward/swift-generic-with-cxx-type/module.modulemap

@@ -0,0 +1,4 @@
+module ReturnsClass {
+  header "returns-class.h"
+  requires cplusplus
+}

lldb/test/API/lang/swift/cxx_interop/forward/swift-generic-with-cxx-type/returns-class.h

@@ -0,0 +1,11 @@
+
+struct CxxClass {
+  long long a1 = 10;
+  long long a2 = 20;
+  long long a3 = 30;
+};
+
+
+struct CxxSubclass: CxxClass {
+  long long a4 = 40;
+};