During speculative attribution of lambda expressions, we might get to the unary/binary op resolution code with erroneous types. When this happens, type class witness resolution fails if Numerical/Integral are tweaked to contain witness methods.
This PR fixes this condition and adds a test. ------------- Commit messages: - Fix issue with type class op resolution inside speculative attribution Changes: https://git.openjdk.org/valhalla/pull/1981/files Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1981&range=00 Stats: 141 lines in 5 files changed: 136 ins; 0 del; 5 mod Patch: https://git.openjdk.org/valhalla/pull/1981.diff Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1981/head:pull/1981 PR: https://git.openjdk.org/valhalla/pull/1981
