New test case for reproducing a recent regression in expression evaluation

[tberghammer]

Summary

In some context, the expression evaluation fails with the following error message:

error: out-of-line definition of '$__lldb_expr' does not match any declaration in 'Foo'
error: 1 errors parsing expression

The regression was introduced by rL245905

This test is not for commit! We should come up with a better test case after we found out what is the exact scenario we want to cover!

test/expression_command/namespace/Makefile

+LEVEL = ../../make
+
+CXX_SOURCES := base.cpp derived.cpp main.cpp
+
+include $(LEVEL)/Makefile.rules

test/expression_command/namespace/TestExprsNamesapce.py

+import unittest2
+import lldb
+import lldbutil
+from lldbtest import *
+
+class ExprCharTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def test_namespace_inline_constructor(self):
+        self.buildDefault()
+        self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
+        self.runCmd("breakpoint set -n main", RUN_SUCCEEDED)
+        self.runCmd("run", RUN_SUCCEEDED)
+        self.runCmd("thread step-in")
+        self.expect("expression 12345", "12345")
+
+if __name__ == '__main__':
+    import atexit
+    lldb.SBDebugger.Initialize()
+    atexit.register(lambda: lldb.SBDebugger.Terminate())
+    unittest2.main()

test/expression_command/namespace/base.h

+namespace NS
+{
+    class FooNS
+    {
+    public:
+        virtual void bar();
+        virtual char baz() = 0;
+
+    protected:
+        int x;
+    };
+}
+

test/expression_command/namespace/base.cpp

+#include "base.h"
+#include <cstdio>
+
+using namespace NS;
+
+void FooNS::bar() {
+    printf("FooNS\n");
+}
+

test/expression_command/namespace/derived.h

+#include "base.h"
+#include <cstdio>
+
+class Foo : public NS::FooNS
+{
+public:
+    Foo() {
+        printf("CTR\n");
+    }
+
+    char baz() override;
+};
+

test/expression_command/namespace/derived.cpp

+#include "derived.h"
+
+char Foo::baz() {
+    return (char)(x&0xff);
+}
+

test/expression_command/namespace/main.cpp

+#include "derived.h"
+
+int main() {
+    Foo f;
+    f.bar();
+    return f.baz();
+}