In complex projects, there might be several library copies (with the
same or different versions). As there is no way to build a reliable
dependency graph between libraries, a project library depends on all
other libraries. As a result, there might be several declarations in the
classpath with the same name and signature.
Normally, K2 issues a 'resolution ambiguity' error on calls to such
libraries. It is acceptable for resolution, as resolution errors are
never shown in the library code. However, the backend, to which
'evaluate expression' needs to pass FIR afterwards, is not designed for
compiling ambiguous (and non-completed) calls.
Currently, the test files are only analyzed as source code, and present
errors do not affect code fragment analysis. In the following commits,
however, the test files will be compiled to test code fragment
analysis against library sources.
As 'FirCodeFragments' are converted to IR independently of its context,
in some cases duplicate (and not quite correct) symbols for local
classes and functions are created.
Until properly fixed in fir2ir, here we replace such duplicates with
original symbols.
In the old JVM backend, local functions were compiled as JVM classes,
so there were an instance to pass around. Today, they are compiled to
static functions in the containing class/facade, and calls to them
compile natively.
Yan Zhulanow