Instead of inserting a comment with error description into the generated code,
generate a call to a function that will print out a conversion error when executed.
Do not print generic "partially converted" message anymore.
Remove --verbose and --no_warnings options.
Bug: 204062171
Test: internal
Change-Id: Ib126e16dc76f49635e4939e670922f2561781049
That is, when a makefile contains
```
ifneq (,$(foo))
$(call inherit-product,module.mk)
endif
```
module.mk has to be present only if `foo` is set.
Fixes: 200163602
Test: internal
Change-Id: Ic5f10ce8d49d6b87162bfe77922bba5e2cce228b
