Language experiments (#2068)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Moved to experiments.
Added some more tests.

* More tests around associated types.

* Return interface tests.

* More tests.

1 files changed, 18 insertions, 0 deletions

diff --git a/tests/experiments/README.md b/tests/experiments/README.md
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+Experiments
+===========
+
+The tests in this directory are all disabled. This set of tests is probably only temporary, and exists to document attempts to use certain language features.
+
+There may be multiple versions of an attempt, when this is the case a number will be added to the suffix. In general tests like this can be considered to have been attempts in that order. 
+
+Some of these tests *do* compile, but are kept because they provide the end of a train of thought. The solution may not be ideal, or the best way to implement in Slang. So they are kept here for completeness.
+
+Some of the issues may be due to a bug, or unimplemented feature in the compiler.
+
+Others may not work because it is not the appropriate way to achieve the desired effect. 
+
+Surprising Observations
+=======================
+
+* let is needed for int generic parameter.
+