Merge 3d88b78d20 into 63a5717bc7

This change makes Debug builds use the CXX -O0 option — which tells the
compiler to build with no optimizations at all.

Otherwise, Debug builds use the -Og option — which, when trying to check
frame variables in lldb, can result in an error of this form:

> error: Couldn't look up symbols: __ZN2AK6Detail10StringBaseD2Ev
> Hint: The expression tried to call a function that is not present in
> the target, perhaps because it was optimized out by the compiler.

Meta/CMake/lagom_compile_options.cmake

@@ -29,7 +29,7 @@ if (CMAKE_BUILD_TYPE STREQUAL "Debug")
     if (NOT MSVC)
         add_cxx_compile_options(-ggdb3)
     endif()
-    add_cxx_compile_options(-Og)
+    add_cxx_compile_options(-O0)
 else()
     add_cxx_compile_options(-O2)
     if (NOT MSVC)